among all the pairs of numbers whose difference is 14 , find the pair with the smallest product. what is the product?
So, 15 and 1 is the pair of numbers whose difference is 14, with the smallest product as 15.
To find the pair of numbers with the smallest product whose difference is 14, we can start by taking the two numbers to be as close to each other as possible. This means we can take one number to be 14 less than the other. For example, we can take the numbers to be 15 and 1. The difference between these two numbers is 14, and their product is 15, which is the smallest product possible for a pair of numbers whose difference is 14.
So, 15 and 1 is the pair of numbers whose difference is 14, with the smallest product as 15.
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Consider angles x and y such that 0 \le y \le x \le pi/2 and sin(x+y) = 0.9 while sin(x-y) = 0.6. what is the value of (sin x + cos x)(sin y + cos y)?
Using trigonometric identities and algebraic manipulations, we derive an expression for sin x and cos x in terms of cos y. The value of (sin x + cos x)(sin y + cos y) is 2.49.
1. Start with the given equations sin(x+y) = 0.9 and sin(x-y) = 0.6.
2. Rewrite the equations using trigonometric identities. For sin(x+y) = 0.9, we have sin x cos y + cos x sin y = 0.9. For sin(x-y) = 0.6, we have sin x cos y - cos x sin y = 0.6.
3. Add the two equations together to eliminate the sin x cos y term: 2 sin x cos y = 1.5.
4. Divide both sides by 2 to solve for sin x cos y: sin x cos y = 0.75.
5. Square both sides of the equation to get (sin x cos y)^2 = 0.75^2. This gives us sin^2 x cos^2 y = 0.5625.
6. Use the trigonometric identity sin^2 x + cos^2 x = 1 to rewrite sin^2 x as 1 - cos^2 x: (1 - cos^2 x) cos^2 y = 0.5625.
7. Expand and rearrange the equation: cos^2 x cos^2 y - cos^4 x = 0.5625.
8. Use the identity cos^2 x = 1 - sin^2 x to substitute for cos^2 x: (1 - sin^2 x) cos^2 y - (1 - sin^2 x)^2 = 0.5625.
9. Expand and simplify: cos^2 y - sin^2 x cos^2 y - (1 - 2sin^2 x + sin^4 x) = 0.5625.
10. Combine like terms: cos^2 y - sin^2 x cos^2 y - 1 + 2sin^2 x - sin^4 x = 0.5625.
11. Rearrange the equation to isolate sin^2 x terms: sin^4 x - sin^2 x (cos^2 y + 2) + cos^2 y - 1 + 0.5625 = 0.
12. Combine like terms: sin^4 x - sin^2 x (cos^2 y + 2) + cos^2 y - 0.4375 = 0.
13. Solve the quadratic equation for sin^2 x: sin^2 x = [(cos^2 y + 2) ± √((cos^2 y + 2)^2 - 4(cos^2 y - 0.4375))] / 2.
14. Simplify the expression: sin^2 x = [(cos^2 y + 2) ± √(cos^4 y + 4cos^2 y + 4 - 4cos^2 y + 1.75)] / 2.
15. Further simplify: sin^2 x = [(cos^2 y + 2) ± √(cos^4 y + 5.75)] / 2.
16. Since 0 ≤ y ≤ x ≤ π/2, the value of cos y is positive. Therefore, cos^2 y + 2 is positive.
17. Thus, the equation simplifies to sin^2 x = (cos^2 y + 2 + √(cos^4 y + 5.75)) / 2.
18. Take the square root of both sides: sin x = √[(cos^2 y + 2 + √(cos^4 y + 5.75)) / 2].
19. Since 0 ≤ y ≤ x ≤ π/2, the value of sin x is positive.
20. Therefore, sin x + cos x = √[(cos^2 y + 2 + √(cos^4 y + 5.75)) / 2] + √(1 - sin^2 x).
21. Substituting the values of sin x and cos x, we have sin x + cos x = √[(cos^2 y + 2 + √(cos^4 y + 5.75)) / 2] + √(1 - [(cos^2 y + 2 + √(cos^4 y + 5.75)) / 2]).
22. Simplify the expression: sin x + cos x = √[(cos^2 y + 2 + √(cos^4 y + 5.75)) / 2] + √[(2 - cos^2 y - √(cos^4 y + 5.75)) / 2].
23. Multiply the two terms: (sin x + cos x)(sin y + cos y) = √[(cos^2 y + 2 + √(cos^4 y + 5.75)) / 2] * √[(2 - cos^2 y - √(cos^4 y + 5.75)) / 2].
24. Simplify: (sin x + cos x)(sin y + cos y) = √[(cos^2 y + 2 + √(cos^4 y + 5.75))(2 - cos^2 y - √(cos^4 y + 5.75))] / 2.
25. Multiply the terms inside the square root: (sin x + cos x)(sin y + cos y) = √[4 - 2cos^2 y - 2√(cos^4 y + 5.75) + 4√(cos^2 y + 2) - 2cos^2 y + cos^4 y + 5.75] / 2.
26. Combine like terms: (sin x + cos x)(sin y + cos y) = √[5 + 2√(cos^2 y + 2) + 2cos^2 y - 2cos^2 y - 2√(cos^4 y + 5.75)] / 2.
27. Cancel out the common terms: (sin x + cos x)(sin y + cos y) = √[5 + 2√(cos^2 y + 2) - 2√(cos^4 y + 5.75)] / 2.
28. Simplify the expression: (sin x + cos x)(sin y + cos y) = √[5 - 2√(cos^4 y + 5.75) + 2√(cos^2 y + 2)] / 2.
29. The value of (sin x + cos x)(sin y + cos y) is 2.49.
Therefore, the value of (sin x + cos x)(sin y + cos y) is 2.49.
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In this problem, we use the product-to-sum trigonometric identities and the given information that sin(x+y) = 0.9 and sin(x-y) = 0.6 to find that the value of (sin x + cos x)(sin y + cos y) equals 1.5.
Explanation:In this problem, you're asked to find the value of (sin x + cos x)(sin y + cos y). Before we solve it directly, let's take advantage of the given information: sin(x+y) = 0.9 and sin(x-y) = 0.6.
To solve this, we can use the product-to-sum trigonometric identities: sin(A)+cos(A)sin(B)+cos(B) = sin(A+B)+sin(A-B). According to the problem, sin(x+y) = 0.9 and sin(x-y)=0.6. Therefore, we have 0.9 + 0.6 which results in 1.5. Thus, the value of (sin x + cos x)(sin y + cos y) equals 1.5.
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Given that Arccos (√3/2)=β, what are all the angle measurements for right triangle ABC?
Answer:
30°, 60° and 90°
Step-by-step explanation:
Given the expression Arccos (√3/2)=β, we can use the expression to calculate one of the acute angles in a right angled triangle.
Note that a right angled triangle is made up of two acute angles and a right angled (90°)
Let's get one of the acute angles first
If Arccos (√3/2)=β
β = cos^-1 √3/2
β = 30°
This shows that one of the acute angles is 30°
To get the third angle, we know that sum of angles in a triangle is 180° and since we already know two of the angles, i.e 90° and 30°, we can get the third angle.
90+30+x = 180
120+x = 180
x = 180-120
x = 60°
All the angle measurement for the right angled triangle are 30°, 60° and 90°
if a square and regular octagon are inscribed in a circle, the octagon covers approximately how much more (as a percentage) of the circle's area?
The area of a regular polygon inscribed in a circle is given by A = (1/2)nr^2sin(2π/n), where n is the number of sides and r is the radius of the circle.
For a square, n = 4, so A(square) = 2r^2.
For a regular octagon, n = 8, so A(octagon) = 2(2+√2)r^2.
The ratio of the areas is:
A(octagon)/A(square) = [2(2+√2)r^2]/(2r^2) = 2+√2 ≈ 3.83
Therefore, the octagon covers approximately 283% more of the circle's area than the square.
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RGB is a color system representing colors: R stands for red, G for green, and B for blue: A color. can be coded as rgbwhere is a number between 0 and 255 representing how much red there is in the color, g is a number between 0 and 255 representing how much green there is in the color, and b is a number between 0 and 255 representing how much blue there is in the color. The color gray is created by using the same value for r,g, and b. How many shades of gray are there?
The total number of shades of gray is given by 256 multiplied by 256 multiplied by 256, which is equal to 16,777,216.
In the RGB color system, a shade of gray is formed by setting the values for red, green, and blue to the same number. Since each color component can take on values from 0 to 255 (inclusive), we have 256 possible values for each component.
To determine the number of shades of gray, we need to find the number of unique combinations of values that can be formed. Since all three color components have the same value, we can simply count the number of unique values that can be chosen.
Since each component can take on 256 different values, there are 256 choices for the first component. For each choice of the first component, there are 256 choices for the second component, and likewise for the third component.
Therefore, the total number of shades of gray is given by 256 multiplied by 256 multiplied by 256, which is equal to 16,777,216. Hence, there are 16,777,216 shades of gray in the RGB color system, where each component is represented by a number between 0 and 255.
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Which function increases at the fastest rate between x = 0 and x = 8? A 2-column table with 5 rows titled Linear Function with the equation f of x = 2 x + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 2, 6, 10, 14, 18. A 2-column table with 5 rows titled Exponential Function with the equation f of x = 2 Superscript x Baseline + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 3, 6, 18, 66, 258. A 2-column table with 5 rows titled Quadratic Function with the equation f of x = 2 x squared + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 2, 10, 34, 74, 130. A 2-column table with 5 rows titled Linear Function with the equation f of x = 3 x + 2. The first column is labeled x with entries 0, 2, 4, 6, 8. The second column is labeled f of x with entries 2, 8, 14, 20, 26.
Answer:
The correct option is;
Exponential function 2ˣ + 2
x = 0, 2, 4, 6, 8
f(x) = 3, 6, 18, 66, 258
Step-by-step explanation:
The given functions are;
f(x) = 2x + 2
x = 0, 2, 4, 6, 8
f(x) = 2, 6, 10, 14, 18
f(x) = 2ˣ + 2
x = 0, 2, 4, 6, 8
f(x) = 3, 6, 18, 66, 258
f(x) = 2·x² + 2
x = 0, 2, 4, 6, 8
f(x) = 2, 10, 34, 74, 130
f(x) = 3·x + 2
x = 0, 2, 4, 6, 8
f(x) = 2, 8, 14, 20, 26
By comparison, the function that increases at the fastest rate between x = 0 and x = 8 is Exponential function 2ˣ + 2
Answer: The answer is B on edg
Step-by-step explanation:
Sketch the region enclosed by the curves and find its
area.
y=x,y=3x,y=−x+4
The region enclosed by the curves y = x, y = 3x, and y = -x + 4 needs to be sketched, and its area should be found.
To sketch the region enclosed by the curves, we need to plot the three given curves on a coordinate plane. The first curve is y = x, which represents a straight line passing through the origin (0,0) with a slope of 1. The second curve is y = 3x, which is also a straight line passing through the origin but with a steeper slope of 3. The third curve is y = -x + 4, which represents a line with a y-intercept of 4 and a negative slope of -1. By plotting these three lines on the same coordinate plane, we can see that they intersect at three points: (0,0), (1,3), and (3,1). The region enclosed by these curves is a triangular region with vertices at these three points. To find the area of this triangular region, we can use the formula for the area of a triangle: A = (1/2) * base * height. Let's draw the graph:
|
4 | . (2, 2)
| .
| .
| .
0 |_____________________
0 1 2 3 4 5 6
In this graph, the first equation (y = x) is depicted by a diagonal line passing through the origin (0,0). The second equation (y = 3x) is a steeper line, while the third equation (y = -x + 4) is a downward-sloping line with a y-intercept of 4. In this case, the base of the triangle is the distance between the points (0,0) and (3,1), which is 3 units. The height of the triangle is the distance between the point (1,3) and the line y = -x + 4, which is also 3 units. Substituting these values into the area formula, we get A = (1/2) * 3 * 3 = 4.5 square units.
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What is 45 less than the product of 18 and a number written as an algebraic expression?
45 less than the product of 18 and a number written as an algebraic expression is 45 < 18x
How to write the word problem as algebraic expressionInformation from the problem include
45 less than the product of 18 and a number
Writing the problem as algebraic expression
let the number be x
The product
= 18 * x
= 18x
45 less than the product
45 < 18x
solving for x
divide through by 18
45 / 18 < 18x / 18
5 / 2 < x as a improper fraction
x > 2 1/2 as a mixed number
Therefore the required algebraic expression for 45 less than the product of 18 and a number is 45 < 18x
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Answer:
y = -3/2x + 3
Step-by-step explanation:
To figure out the equation, it is very simple:
First you must find the y-int
The y-int is the point where the line touches the y-axis
The only point that touches the y-axis is (0,3)
so the y-int is 3
Next we need to find the slope, which is rise over run
we must find how far one point is from another point
so we start from the point (0,3) on the y-axis, then we go down 3 and to the right 2 and we are on the point (2,0)
so the slope is -3/2, because the line is going downwards, not upwards
now we just put the equation together, in the slope intercept form
y-int = b = 3
slope = m = -3/2
y = mx + b
y = -3/2x + 3
Answer: y = -3/2x + 3
Step-by-step explanation:
did the test and hope this helps
Hannah's favorite cereal comes in 2 sizes:
775 grams for $6.45 and
400 grams for $3.15.
Which is the better buy? Why?
please help its urgentt
At a local theater, 2/3 of the seats are located on the main floor. The remaining seats are located in the balcony. There are 600 seats on the main floor.
How many total seats are in the theater?
For an upcoming show, 4/5 of the floor seats have been sold and 1/2 of the balcony seats have been sold. What overall fraction of the seats in the whole theater have been sold?
Overall fraction of sold seats is 0.63333...
How to find the total number of seats in the theaterFirst we use the fact that 2/3 of the seats are located on the main floor and the number of seats on the main floor is 600, so the total number of seats can be calculated as follows:
Total number of seats = 600 / (2/3) = 900 seats
Next, we can find the number of seats in the balcony:
Balcony seats = Total number of seats - Main floor seats = 900 - 600 = 300 seats
Next, we can find the number of sold floor seats:
Sold floor seats = 4/5 * 600 = 480 seats
And the number of sold balcony seats:
Sold balcony seats = 1/2 * 300 = 150 seats
Finally, to find the overall fraction of sold seats in the theater, we add the number of sold floor seats and the number of sold balcony seats and divide by the total number of seats:
Overall fraction of sold seats = (480 + 150) / 900 = 0.63333... (rounded to the nearest hundredth)
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Escribe 2 ejemplos que contengan universo, población y muestra. Pueden ser de artículos de tu agrado como: celulares, motos, consolas de juegos, etc.
Responder:
Teléfonos móviles :
Universo - -> {todos los teléfonos móviles} - unidad experimental
Población - -> {Samsung, tecno, LG, iPhone, Motorola, Huawei, .....} - -> valores variables de unidades experimentales
Muestra - - -> {Samsung, tecno, iPhone} - selección aleatoria de datos de población
Países europeos :
Universo - -> {todos europeos} - unidad experimental
Población - -> {Inglaterra, Noruega, Turquía, Italia, Francia, Holanda, .....} - -> valores variables de todos los países europeos
Muestra - - -> {España, Alemania, Polonia} - selección aleatoria a partir de datos de población
Explicación paso a paso:
Haciendo distinción entre universo, población y muestra. Univerae y la población se describen como sinónimos en algún texto. Sin embargo, otros textos estadísticos hicieron diferencias sutiles entre ambos; con el universo que se dice que contiene todas las unidades experimentales. ; siendo población el conjunto de valores de la variable. Sin embargo, podemos asumir de manera concluyente que ambos son sinónimos, ya que de ellos se extrae una muestra que es un subconjunto de un conjunto de datos más grande (población).
What biconditional would be a triangle three side polygon
Answer:
here u go
Step-by-step explanation:
6 16 Next → Pretest: Scientific Notation Drag the tiles to the correct boxes to complete the pairs.. Particle Mass (grams) proton 1.6726 × 10-24 The table gives the masses of the three fundamental particles of an atom. Match each combination of particles with its total mass. Round E factors to four decimal places. 10-24 neutron 1.6749 × electron 9.108 × 10-28 two protons and one neutron one electron, one proton, and one neutron Mass 0-24 grams two electrons and one proton one proton and two neutrons Submit Test Particles F
We can drag the particles in mass/grams measurement to the corresponding descriptions as follows:
1. 1.6744 × 10⁻²⁴: Two electrons and 0ne proton
2. 5.021 × 10⁻²⁴: Two protons and one neutron
3. 5.0224 × 10⁻²⁴: One proton and two neutrons
4. 3.3484 × 10⁻²⁴: One electron, one proton, and one neutron
How to match the particlesTo match the measurements to the descriptions first note that one neutron is 1.6749 × 10⁻²⁴. One proton is equal to 1.6726 × 10⁻²⁴ and one electron is equal to 9.108 × 10⁻²⁸.
To obtain the right combinations, we have to add up the particles to arrive at the constituents. So, for the figure;
1.6744 × 10⁻²⁴, we would
Add 2 electrons and one proton
= 2(9.108 × 10⁻²⁸) + 1.6726 × 10⁻²⁴
= 1.6744 × 10⁻²⁴
The same applies to the other combinations.
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What are the dimensions of the rectangle shown on the coordinate plane?
The base is 5 units and the height is 3 units.
The base is 4 units and the height is 7 units.
The base is 7 units and the height is 5 units.
The base is 7 units and the height is 3 units.
A researcher conducts a one-way ANOVA in which one independent variable has four levels.
(a) How many different groups are in this study?
(b) How many different factors are in this study?
The total number of groups in the study of one way ANOVA with the given condition of variable and levels is four different groups and number of different factors in one-way ANOVA is equal to one.
In a one-way ANOVA with one independent variable with four levels, there are four different groups in the study.
Each group represents a level of the independent variable.
There is only one factor in a one-way ANOVA.
The factor is the independent variable with the four levels, which is used to classify the groups in the study.
The factor is what the researcher is interested in studying.
And the ANOVA is used to determine if there are any statistically significant differences in the mean scores between the groups.
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i. Show that = (a, b) and w = (-b, a) are orthogonal vectors. ii. Use the result in part i. to find two vectors that are orthogonal to √=(2, -3). iii. Find two unit vectors that are orthogonal to 7
i. Vectors u and w are orthogonal.
ii. The two vectors orthogonal to v = √(2, -3) are u = (3, 2) and w = (-2, 3).
iii. The two unit vectors orthogonal to 7 are u = (1, -1) / √2 and w = (1, 1) / √2.
i. To show that vectors u = (a, b) and w = (-b, a) are orthogonal, we need to demonstrate that their dot product is zero.
The dot product of u and w is given by:
u · w = (a, b) · (-b, a) = a*(-b) + b*a = -ab + ab = 0
ii. To find two vectors orthogonal to vector v = √(2, -3), we can use the result from part i.
Let's denote the two orthogonal vectors as u and w.
We know that u = (a, b) is orthogonal to v, which means:
u · v = (a, b) · (2, -3) = 2a + (-3b) = 0
Simplifying the equation:
2a - 3b = 0
We can choose any values for a and solve for b. For example, let's set a = 3:
2(3) - 3b = 0
6 - 3b = 0
-3b = -6
b = 2
Therefore, one vector orthogonal to v is u = (3, 2).
To find the second orthogonal vector, we can use the result from part i:
w = (-b, a) = (-2, 3)
iii. To find two unit vectors orthogonal to 7, we need to consider the dot product between the vectors and 7, and set it equal to zero.
Let's denote the two orthogonal unit vectors as u and w.
We know that u · 7 = (a, b) · 7 = 7a + 7b = 0
Dividing by 7:
a + b = 0
We can choose any values for a and solve for b. Let's set a = 1:
1 + b = 0
b = -1
Therefore, one unit vector orthogonal to 7 is u = (1, -1) / √2.
To find the second unit vector, we can use the result from part i:
w = (-b, a) = (1, 1) / √2
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there are eight pieces of pizza. marco ate three-eighths of the pizza for lunch. he ate another two- eighths of the pizza for dinner. how much of the pizza has he eaten altogether?
He has eaten \(\frac{5}{8}\) pizza altogether.The total pieces of pizza was 8.Marco ate 3 for lunch and 2 for dinner.So, he ate 5 pieces of pizza out of 8.
What is fraction?
A fraction is a numerical value that is a part of whole number.In this numerator divided by denominator .In simple term both are integers.The word fraction means to break.
How many types of fraction?there are many types of fraction.Proper fraction, improper fraction,mixed fraction,whole fraction, like fraction, unlike fraction and unit fraction.
Total pieces of pizza =8
Marco ate for lunch =3
He ate for dinner =2
Total he ate =3+2
=5
Now remaining pieces of pizza=8-5
=3
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Answer:
5/8
Step-by-step explanation:
Is smart do this solve
Good luck~
Pls don't spam...
Step-by-step explanation:
Assume 80° should be 180° to have same pattern.
Use reduction formulas and solve:
\(\dfrac{sin(180+A)+2cos(180+A)cos(A-180)}{2cos^2(360+A)-cos(-A)} =\)\(\dfrac{-sin(A)+2(-cos(A))(-cos(A))}{2cos^2(A)-cos(A)} =\)\(\dfrac{2cos^2(A)-sin(A)}{2cos^2(A)-cos(A)}\)As given, it simplifies to the above fraction.
If the sin was cos then the final result would be 1 as both numerator and denominator would be equal.
barbara sells iced tea for $1.49 per bottle and water for $1.25 per bottle. she wrote an equation to find the number of bottles she needs to sell to earn $100. 1.25x 1.49
she would need to sell at least 37 bottles to reach her earnings goal.
Let's assume that Barbara needs to sell x bottles to earn $100. The total revenue she generates from selling water can be calculated by multiplying the number of water bottles (x) by the price per water bottle ($1.25). Similarly, the total revenue from selling iced tea can be calculated by multiplying the number of iced tea bottles (x) by the price per iced tea bottle ($1.49).
To earn $100, the total revenue from selling water and iced tea should sum up to $100. Therefore, we can set up the following equation:
(1.25 * x) + (1.49 * x) = 100
Combining like terms, the equation becomes:
2.74 * x = 100
To find the value of x, we can divide both sides of the equation by 2.74:
x = 100 / 2.74
Evaluating the right side of the equation, we find:
x ≈ 36.50
Therefore, Barbara needs to sell approximately 36.50 bottles (rounded to the nearest whole number) of water and iced tea combined to earn $100.
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write a function g whose graph represents a reflection in the x-axis of the graph of f(x)= -5x+2
Using the reflection concept, the function is given by:
\(g(x) = 5x - 2\)
------------------
Reflecting a function f(x) over the x-axis is the same as exchanging it's signal, that is, \(g(x) = -f(x)\)The function given is:
\(f(x) = -5x + 2\)
The reflection over the x-axis is:
\(g(x) = -f(x)\)
\(g(x) = -(-5x + 2)\)
\(g(x) = 5x - 2\)
Which is the desired function g.
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A cup of popcorn at the movie theater sells for $0.25 per cubic inch. A medium sized popcorn is served in a cylindrical cup that is 6 inches in height and 4 inches in diameter. How much would it cost to the nearest cent?
PLEASE HELP :(!
Surface area - The cost of medium popcorn will be $473.25.
What is surface area?
The surface area of a three-dimensional object is the space taken up by its outer surface.
For instance,
The surface area of a cube is what we need to calculate the amount of paint needed to paint it. It is consistently expressed in square units.
The surface area of the cylinder with the top open = πr(r + 2h)
we are given that,
r = 2in
h = 6in
taking π as 3.14, and substituting these vales in the above equation,
surface area = π x 2 (2 x 2 x 6)
= 3.14 x 2 (2 x 2 x 6)
= 1893in²
cost = 1893 x 0.25
= $473.25
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in ten dollars more than Sara. How much money did Lisa and Joe put towards the gift?
Lisa and Joe put $46 towards the gift
How much money did Lisa and Joe put towards the gift?Let's call the amount of money that Sara put in "x".
Joe put in twice that amount, so he put in 2x.
Lisa put in ten dollars more than Sara, so she put in x + 10.
Together, Sara, Joe, and Lisa put in x + 2x + (x + 10) = $58.
Evaluate the like terms, so we have
4x + 10 = 58.
Subtracting 10 from both sides, we get
4x = 48.
Dividing both sides by 4, we find that
x = $12.
So Sara put in $12, Joe put in $24, and Lisa put in $22.
The total amount put by Lisa and Joe is $24 + $22 = $46.
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Complete question
Three friends are put their money together to buy a $58 gift. Joe put in twice the amount of money as Sara. Lisa put in ten dollars more than Sara. How much money did Lisa and Joe put towards the gift?
Use the drop-down menus to complete each equation so the statement about its solution is true.
You have not provided the contents of any of the drop-down menus, so we cannot say for certain what the answers should be--except in the case of "infinitely many solutions.
For no solution,2x + 9 + 3x + x = 6x
For one solution,2x + 9 + 3x + x = 15
For infinitely many solutions,2x + 9 + 3x + x = 6x + 9
Based on the given conditions,
(1) No solutions :
There will be no solutions when the left side is inconsistent with the right side:
2x + 9 + 3x + x = _ x + _
We can sum of difference,
6x + 9 = 6x
Subtract 6x from both sides,
6x - 6x = -9
9 = 0
9 = 0 which is absurd and hence the equation has no solution.
(2) One solutions :
There will be one solution when the left side and right side are not inconsistent and not the same.
2x + 9 + 3x + x = 15
6x + 9 = 15
Subtract 9 from both sides.
6x = 6
Divide both sides by 6.
x = 1 and this is the only solution.
(3) Infinity solutions :
There will be an infinite number of solutions when the equation is true for any value of x. This will be the case when the left side and right side are identical.
2x + 9 + 3x + x = 6x + 9
6x + 9 = 6x + 9
Subtract 6x from both sides,
9 = 9, both sides are balanced which means, the equation has infinitely many solutions.
Therefore,
For no solution,2x + 9 + 3x + x = 6x
For one solution,2x + 9 + 3x + x = 15
For infinitely many solutions,2x + 9 + 3x + x = 6x + 9
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In Exercises 19 22, evaluate the derivative by using the appropriate Product Rule, where
R1(t) = (t2,t3,t), r2 (t)= (e32, e22,et)
19. d/dt (r1(t). r2(t))
20 d/dt (t4r1 (t))
The derivative of t^4*r1(t) is (6t^5, 9t^6, t^4 + 4t^3).
To evaluate the derivative of r1(t).r2(t) using the Product Rule, we first need to find the derivatives of r1(t) and r2(t) separately. The derivative of r1(t) is (2t, 3t^2, 1) and the derivative of r2(t) is (0, 0, e^t). Now we can apply the Product Rule, which states that the derivative of two functions multiplied together is the first function times the derivative of the second function plus the second function times the derivative of the first function. So the derivative of r1(t).r2(t) is:
d/dt (r1(t).r2(t)) = r1(t) * (0, 0, e^t) + r2(t) * (2t, 3t^2, 1)
= (0, 0, t^2*e^t) + (2t*e^3, 2t*e^2, 2t*e^t)
= (2t*e^3, 2t*e^2, t^2*e^t + 2t*e^t)
20. Similarly, to evaluate the derivative of t^4*r1(t) using the Product Rule, we first need to find the derivatives of t^4 and r1(t) separately. The derivative of t^4 is 4t^3 and the derivative of r1(t) is (2t, 3t^2, 1). Now we can apply the Product Rule:
d/dt (t^4*r1(t)) = t^4 * (2t, 3t^2, 1) + r1(t) * 4t^3
= (2t^5, 3t^6, t^4) + (4t^5, 6t^5, 4t^3)
= (6t^5, 9t^6, t^4 + 4t^3)
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g How many ways are arrange the letters in UNIVERSALLY so that no two vowels occur consecutively and also the consonants appear in alphabetical order
There are 43,200 number of ways to arrange the letters in UNIVERSALLY so that no two vowels occur consecutively and the consonants appear in alphabetical order.
To find the number of ways to arrange the letters in UNIVERSALLY so that no two vowels occur consecutively and the consonants appear in alphabetical order, follow these steps:
1. Identify the vowels and consonants: Vowels are U, I, E, A, and Y; consonants are N, R, S, S, L, and L.
2. Arrange the consonants in alphabetical order: L, L, N, R, S, S.
3. Count the number of positions available for placing the vowels: There are 7 positions available for the vowels (between the consonants and at the beginning and the end of the word), which are _ L _ L _ N _ R _ S _ S _.
4. Count the permutations of the vowels: There are 5 vowels with the letters U, I, E, A, and Y occurring once. So there are 5! = 120 permutations.
5. Consider the consonants with repeating letters: Since there are two Ls and two Ss, we must divide the total permutations by the product of the repetitions (2! for L and 2! for S). Therefore, there are 6!/(2!*2!) = 360 arrangements for consonants.
6. Combine the permutations of vowels and consonants: To find the total number of ways to arrange the letters, multiply the permutations of vowels (120) by the arrangements for consonants (360).
120 * 360 = 43,200
So, there are 43,200 ways to arrange the letters in UNIVERSALLY so that no two vowels occur consecutively and the consonants appear in alphabetical order.
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Use the comparison test to determine if the following series converges or diverges. [infinity]
∑ (sin^2 n) / n^(9/2) n=1
Choose the correct answer below. A. The comparison test with [infinity]
∑ 1 / n^(9/2) shows that the series diverges.
n=1
B. The comparison test with [infinity]
∑ 1 / n^(9/2) shows that the series converges.
n=1
C. The comparison test with [infinity]
∑ (sin^2 n) shows that the series converges.
n=1
D. The comparison test with [infinity]
∑ (sin^2 n) shows that the series diverges.
n=1
The comparison test with the series ∑ 1 / n^(9/2) shows that the series converges.
To use the comparison test to determine if the series ∑ (sin^2 n) / n^(9/2) converges or diverges, we need to find a known series with terms that are greater than or equal to the terms of the given series. If the known series converges, then the given series also converges. If the known series diverges, then we cannot conclude anything about the convergence of the given series.
We can use the comparison test with the series ∑ \(1 / n^(9/2)\) to determine the convergence or divergence of the given series. Since \(sin^2\) n is always between 0 and 1, we have:
0 ≤ \((sin^2 n) / n^(9/2)\) ≤ \(1 / n^(9/2)\)
Therefore, by the comparison test, if the series ∑ \(1 / n^(9/2)\) converges, then the series ∑ \((sin^2 n) / n^(9/2)\) also converges. Conversely, if the series ∑ \(1 / n^(9/2)\) diverges, then the series ∑ \((sin^2 n) / n^(9/2)\) also diverges.
The series ∑ \(1 / n^(9/2)\) is a p-series with p = 9/2 > 1, so it converges. Therefore, by the comparison test, the given series ∑ \((sin^2 n) / n^(9/2)\) also converges.
The correct answer is B. The comparison test with the series ∑ \(1 / n^(9/2)\) shows that the series converges.
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A uniform continuous distribution has a maximum of 14 and a minimum of 2. Samples of size 36 are drawn from the distribution. What is the variance of the sample means?.
The sample mean variance of the continuous distribution will be 0.3428.
The population variance is equal to the sample size divided by the variance of the sampling distribution of the mean.
14 is the greatest and 1 is the smallest value in a uniform continuous distribution.
36-size samples are taken from the distribution.
Now,
Variance among the population = 14 – 2 = 12
The sample size is 36.
Given that the sample means' variance is defined as;
= Variation in the population / Sample Size
If you replace all the values, you get;
= 12 / 35
= 0.3428
As a result, the sample mean variance will be 0.3428.
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What is the value of the quota if at least two-thirds of the votes are required to pass a motion?
The value of the quota if at least two-thirds of the votes are required to pass a motion is (2/3) x Total votes cast.
A quota is a number of votes required to approve an action, or in this case, a motion. It can be calculated as a fraction of the total votes cast or as a fixed number of votes.
In this case, we are given that at least two-thirds of the votes are required to pass a motion. This means that the quota is greater than or equal to two-thirds of the total votes cast.
We can calculate the value of the quota using the following formula:
Value of the quota = (2/3) x Total votes cast
For example, if the total votes cast are 100, then the value of the quota would be:
(2/3) x 100 = 66.67
Therefore, the value of the quota is (2/3) x Total votes cast.
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the quadratic equation y = x^2 + 3x + 4 step by step
The quadratic equation is solved and the y intercept is A ( 0 , 4 ) and the roots of the given equation are complex numbers
Given data ,
Let the quadratic equation be represented as A
Now , the value of A is
y = x² + 3x + 4
On simplifying , we get
the y-intercept of this equation, we set x = 0 and solve for y:
y = 0² + 3(0) + 4
y = 0 + 0 + 4
y = 4
So, the y-intercept of the given quadratic equation is (0, 4)
And , the roots of the equation is
x = [ -b ± √ ( b² - 4ac ) ] / ( 2a )
x = (-3 ± √(3² - 4(1)(4))) / (2(1))
x = (-3 ± √(9 - 16)) / 2
x = (-3 ± √(-7)) / 2
So , the roots are complex numbers
Hence , the quadratic equation is solved
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