Three boxes each contain a different number of marbles. Box A has 70 marbles, box B has 88 marbles, and box C has 80 marbles. Marbles are to be transferred from box B to box A. What is the least number of marbles that can be transferred so box C has the most marbles?
it A
Step-by-step explanation:
10 The diagram shows a garden in the shape of a rectangle.
All measurements are in metres.
a +3
2a + 3b
4a - 3b
4b
a Write down a pair of simultaneous equations.
Answer: a= -3 and b= -1
A town has 1650 people initially. In each of the cases below, find the formula for the population of the town, P, in terms of the number of years, t.
a. The town grows by 70 people a year. P(t)= __________
b. The town grows at an annual rate of 3 percent a year. P(t)= __________
c. The town shrinks by 50 people a year. P(t)= __________
d. The town shrinks at an annual rate of 8 percent a year. P(t)= __________
a. The population function that shows a growth of 70 people per year is P(t) = 1650 + 70t
b. The population function that shows an annual growth rate of 3% is
P(n) = 1650 * (1 + 0.03)ⁿ
c. The population function that shows a shrinkage of 50 people per annum is P(t) = 1650 - 50t
d. The population function that shows an annual shrinkage rate of 8% per annum is P(n) = 1650 * (1 - 0.08)ⁿ
What is the equation that represents the population in each case?a. In this case, where the town grows by 70 people a year, we can represent the population as a linear function of time:
P(t) = 1650 + 70t
b. When the town grows at an annual rate of 3 percent, we can express the population using exponential growth:
P(n) = 1650 * (1 + 0.03)ⁿ
c. If the town shrinks by 50 people each year, we can represent the population as a linear function of time:
P(t) = 1650 - 50t
d. When the town shrinks at an annual rate of 8 percent, we can express the population using exponential decay:
P(n) = 1650 * (1 - 0.08)ⁿ
In each case, "P(t) or P(n)" represents the population of the town after "t" or "n" years, starting with an initial population of 1650 people. The formulas provide different models for how the population changes over time based on the given conditions.
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identify an equation in point-form for the line perpendicular to y=-1/3x-6 that pass through -1,5
Answer:
y=3x+8
Step-by-step explanation:
Perpendicular to -1/3, is 3.
y-5=3(x+1)
y-5=3x+3
y=3x+8
Answer:
y - 5 = 3(x + 1).
Step-by-step explanation:
y = -1/3x - 6
The slope of this line is -1/3 so the slope of the perpendicular line to it is -1/-1/3
= 3.
Using the point-slope form of a straight line:
y - y1 = m(x - x1) where m = the slope and (x1, y1) is a point on the line:
Here m = 3 and (x1, y1) is (-1, 5) so we have:
y - 5 = 3(x - (-1))
y - 5 = 3(x + 1).
Find the solution to the problem and show your steps. -7x+9=3x+49
Answer:
x=-4 is the answer
Step-by-step explanation:
-7x+9=3x+49
Subtracting 3x on both sides
-7x-3x+9=49
Subtracting 9 on both sides
-10x=49-9
-10x=40
x=-4
I hope this will help you :)
see photo above to anwser
Answer:
i can see
Step-by-step explanation:
UKDIAMOND is a great place for the people of sentence to get it 4out in a sense that you are a very
Answer:
b = 99°
Step-by-step explanation:
XY is a line segment and so it is a straight line which means that it is a straight angle - 180°
a = 28°
c = 53°
b = ?
=> a + b + c = 180°
=> 28° + b + 53° = 180°
=> b = 180° - (53 + 28)°
=> b = 180° - 81°
=> b = 99°
Therefore b = 99°
Hope it helps :)
Anybody good in geometry and know how to do this? Free Brainliest and points !!!
Answer:
points are free?
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
clockwise is rotating it to the right. And then 180 rotation would cause the image to be flipped upside down
find the length of the spiraling polar curve =65 e^{2 \theta} From 0 to 2 \pi .
The length of the spiraling polar curve \(r = 65e^{(2\theta)}\) from θ = 0 to θ = 2π is approximately 2.084×10⁷ units.
To find the length of the spiraling polar curve \(r = 65e^{(2\theta)}\) from θ = 0 to θ = 2π, you can follow these steps:
1. Use the polar curve arc length formula:
\(L=\int \sqrt{r^2+\left(\frac{d r}{d \theta}\right)^2} d \theta\) from θ = 0 to θ = 2π, where r is the polar curve equation and dr/dθ is its derivative with respect to θ.
2. Differentiate the given polar curve with respect to θ:
\(dr/d\theta = 130e^{2\theta}\).
3. Calculate r² + (dr/dθ)²:
\((65e^{(2\theta)})^2 + (130e^{(2\theta)})^2 = 65^2 \times e^{(4\theta)} + 130^2 \times e^{(4\theta)}\).
4. Factor the common term and simplify:
\(e^{(4\theta)}(65^2 + 130^2) = 21125 e^{(4\theta)}\).
5. Now, find the square root of the expression:
\(\sqrt{(21125 \times e^{(4\theta)})} = 145.34 e^{(2\theta)}\).
6. Integrate the expression with respect to θ from 0 to 2π:
\(\int145.34 e^{(2\theta)}d\theta\) from θ = 0 to θ = 2π.
7. Perform the integration:
\((145.34/2) [e^{4\pi}-e^0]\) = 2.084×10⁷ units.
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Area of triangle with height is on clear
The Area of triangle with the given height 10 cm and base 6 cm is calculated to be 30 square centimeters.
To calculate the area of a triangle with height 10 cm and base 6 cm, we can use the formula:
Area = (1/2) x Base x Height
Substituting the given values, we get:
Area = (1/2) x 6 cm x 10 cm
Area = 30 square cm
Therefore, the area of the triangle is 30 square centimeters.
We can see that the area of the triangle is calculated by multiplying the base and height and then dividing the result by 2. In this case, the height of the triangle is 10 cm and the base is 6 cm, so the area is 30 square cm. This formula can be used to calculate the area of any triangle, regardless of its size or shape.
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The complete question is :
Calculate the Area of triangle with the height 10 cm and base 6 cm .
. Ella recently took two test—a math and a Spanish test. The math test had an average of 55 and a standard deviation of 5 points. The Spanish test had an average of 82 points and standard deviation of 7. Ella scores a 66 in math and 95 in Spanish. Compared to the class average, on which test did Ella do better? Explain and justify your answer with numbers.
Subject Ella's score Class average Class standard deviation
Math 66 55 5
Spanish 95 82 7
In statistics, comparing an individual’s performance to the class average is a very common question. To solve the given problem, we will compare Ella’s math and Spanish scores to the class averages. We will calculate the z-score to compare her performance and see which score was relatively better.
The z-scores for Ella’s test scores.z math =(66 – 55) / 5= 2.2 z Spanish =(95 – 82) / 7= 1.86 Now let’s explain the z-score obtained: For the math test, Ella’s z-score is 2.2 which means that she scored 2.2 standard deviations above the class average. For the Spanish test, Ella’s z-score is 1.86 which means that she scored 1.86 standard deviations above the class average. A positive z-score indicates that Ella performed better than the class average and a negative z-score indicates that she performed worse.Now, let’s compare the z-scores obtained for each test. Since Ella’s z-score for math is higher than her z-score for Spanish, Ella did better on the math test than the Spanish test.
Therefore, we can say that Ella performed better on the math test than on the Spanish test when compared to the class average.
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Question 10 of 25
The polynomial (x-2) is a factor of the polynomial 5x² - 6x +4.
O A. True
OB. False
Answer:
B. False
Step-by-step explanation:
5x² - 6x + 4 | 5 × 4 = 20
Can't factor it normally
√b² - 4ac
-b ± ---------------
2a
√(-6)² - 4(5)(4)
-(-6) ± ---------------
2(5)
√36 - 80
6 ± ---------------
10
6 ± √-44
---------------
10
6 ± √-4 × 11
---------------
10
6 ± 2i√11
---------------
10
The answer is actually
3 ± i√11
---------------
5
I hope this helps!
Answer:
B. False
Step-by-step explanation:
You want to know if (x -2) is a factor of 5x² -6x +4.
RemainderThere are a couple of ways you can determine whether (x -2) is a factor. One is to look at the polynomial value at x=2:
5x² -6x +4 = (5x -6)x +4 = (5(2) -6)(2) +4 = 4(2) +4 = 12
The value is not 0, so (x -2) is not a factor.
Other factorAnother way to tell is to determine what the other factor would be.
The product of roots is the ratio c/a = 4/5 in the polynomial. If 2 is a root, then (4/5)/2 = 2/5 is the other root. That would mean the factorization of the polynomial is ...
(5x -2)(x -2) = 5x² -12x +4 . . . . . . not the same polynomial
The polynomial 5x² -6x +4 does not have a factor (x -2).
GraphThe graph of the polynomial has no x-intercepts, so (x -2) cannot be a factor.
Adding fractions
1/5 + 2/22
Answer:
16/55
Step-by-step explanation:
Answer: 16/55
Step-by-step explanation:1
5
+
2
22
=
1 × 22
5 × 22
+
2 × 5
22 × 5
=
22
110
+
10
110
=
22 + 10
110
=
32
110
=
32 ÷ 2
110 ÷ 2
=
16
55
An analysis of variance comparing three treatment conditions produces dftotal = 32. If the samples are all the same size, how many individuals are in each sample.
Select one:
a.9
b. It is impossible for the samples to be the same size if dftotal = 32.
c. 11
d. 10
An analysis of variance comparing three treatment conditions produces dftotal = 32. It is possible for the samples to be the same size. The correct answer is b.
To determine the number of individuals in each sample when the total degrees of freedom (dftotal) is 32,
we need to divide the total degrees of freedom equally among the three treatment conditions.
Start with the assumption that each sample has an equal size, denoted as n.
Calculate the degrees of freedom within each sample, denoted as dfwithin.
Since there are three treatment conditions,
each sample has (n-1) degrees of freedom within, resulting in a total of 3(n-1) degrees of freedom within the three samples.
Calculate the degrees of freedom between the samples, denoted as dfbetween.
The dfbetween is equal to the total degrees of freedom (dftotal) minus the degrees of freedom within (dfwithin): dfbetween = dftotal - 3(n-1).
Set up the equation: dftotal = dfwithin + dfbetween.
Substituting the values,
we get: 32 = 3(n-1) + (dftotal - 3(n-1)).
Simplify the equation: 32 = 3(n-1) + (32 - 3(n-1)).
Solve for n: 32 = 3n - 3 + 32 - 3n + 3.
Combine like terms and simplify: 32 = 32.
Since the equation is true regardless of the value of n, it means that the size of each sample can be any positive number, and the samples can be the same size.
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1) What are the solutions of (x/3) > -1?
is this asking if I need multiple solutions?
Yes...
x/3 > -1
what values of x make x/3 > -1
hint... your answer will look like like x > (number)
Which of the following answer choices shows which numbers from the list below are less than - 0.94?
Answer:
-2.23, -2 2/5, -0.95
Step-by-step explanation:
-15/16 = -0.9375 (greater than -0.94)
0.24 (greater than -0.94)
-2.23 (less than -0.94)
97% = 0.97 (greater than -0.94)
-2 2/5 = -2.4 (less than -0.94)
-0.95 (less than -0.94)
Suppose that an investment has 0.5% chance of a loss of $10
million and a 99.5% chance of a loss of $1 million. What is the
Value-at-Risk (VaR) for this investment when the confidence level
is 99%
To calculate the Value-at-Risk (VaR) for this investment at a 99% confidence level, we need to determine the loss amount that will be exceeded with a probability of only 1% (i.e., the worst-case loss that will occur with a 1% chance).
Given that there is a 0.5% chance of a loss of $10 million and a 99.5% chance of a loss of $1 million, we can express this as:
Loss Amount | Probability
$10 million | 0.5%
$1 million | 99.5%
To calculate the VaR, we need to find the loss amount that corresponds to the 1% probability threshold. Since the loss of $10 million has a probability of 0.5%, it is less likely to occur than the 1% threshold. Therefore, we can ignore the $10 million loss in this calculation.
The loss of $1 million has a probability of 99.5%, which is higher than the 1% threshold. This means that there is a 1% chance of the loss exceeding $1 million.
Therefore, the Value-at-Risk (VaR) for this investment at a 99% confidence level is $1 million.
The Value-at-Risk (VaR) for this investment at a 99% confidence level is $1,045,000.
To calculate the Value-at-Risk (VaR) for this investment at a 99% confidence level, we need to determine the loss amount that will be exceeded with only a 1% chance.
Given that the investment has a 0.5% chance of a loss of $10 million and a 99.5% chance of a loss of $1 million, we can calculate the VaR as follows:
VaR = (Probability of Loss of $10 million * Amount of Loss of $10 million) + (Probability of Loss of $1 million * Amount of Loss of $1 million)
VaR = (0.005 * $10,000,000) + (0.995 * $1,000,000)
VaR = $50,000 + $995,000
VaR = $1,045,000
Therefore, the Value-at-Risk (VaR) for this investment at a 99% confidence level is $1,045,000.
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A right triangle, JKL, is given with KJL = 30° and JKL = 90°. KM is drawn such that L, K, and M are collinear. points J and M are joined by JM with JM = JL. Find JML and explain your answer.
A- 30°
B-90°
C-180°
D-60°
Answer:
I tried but soory I can't understand
Answer:
D-60°
Step-by-step explanation:
K,L,M is collinear and JM=JL
M can only be extend to the left of K, otherwise it will overlap with L
JM = JL ΔJML is isosceles triangle ∠JML ≅ ∠JLM
∠JLM = 90 - ∠KJL = 90 - 30 = 60
∠JML = 60°
x+y=3
x^2+y^2=17
Solve the simultaneous equations
The possible solution set for the system is (- 1, 4) and (4, - 1).
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given are the equations as -
x + y = 3
x² + y² = 17
Refer to the graph of the function attached. The points of intersection represents the possible solution set.
Therefore, the possible solution set for the system is (- 1, 4) and (4, - 1).
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The following structure is composed of three right rectangular prisms: two that each measure 12 inches by 10 inches by 5 inches and one right rectangular prism that measures 10 inches by 8 inches by 36 inches. What is the total volume of the structure? Show your work and/or explain your reasoning..
The volume of the stucture made from three rectangular prism is 4080 ft³
What is volume?Volume is the amount of space occupied by a three dimensional shape or object.
The volume of the rectangular prism = length * width * height = 12 * 10 * 5 = 600 ft³
The volume of the other prism = length * width * height = 10 * 8 * 36 = 2880 ft³
Volume of the structure = 600 ft³ + 600 ft³ + 2880 ft³ = 4080 ft³
The volume of the stucture made from three rectangular prism is 4080 ft³
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Form the perfect square trinomial in the process of completing the square. what is the value of c? x2 3x c = startfraction 7 over 4 endfraction c c =
While making a perfect square for the given quadratic equation \(\rm x^2+3x+c=\frac{7}{4} +c\) the value of c is 9/4
It is given that the quadratic equation \(\rm x^2+3x+c=\frac{7}{4} +c\) while forming the perfect square.
It is required to find the value of c.
What is a quadratic equation?It is defined as the equation of polynomial of degree two. The standard form of the quadratic equation is as follows:
\(\rm ax^2+bx+c=0\) where \(\rm a\neq 0\)
We have a quadratic equation:
\(\rm x^2+3x+c=\frac{7}{4} +c\)
We know that we can make any quadratic equation into a perfect square by the perfect square trinomial method as follow:
\(\rm ax^2+bx+c=0\\\rm ax^2+bx=-c\\\rm ax^2+bx+(\frac{b}{2a})^2 =-c+(\frac{b}{2a})^2\\\)
So, the value of 'c' would be:
\(\rm c=(\frac{b}{2a})^2\\\) here b=3 and a=1 by comparing the equation to the standard equation.
\(c=(\frac{3}{2\times1} )^2\\c=(\frac{3}{2} )^2\\c=\frac{9}{4}\)
Thus, while making a perfect square for the given equation the value of c is 9/4
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Answer:
9/4
Step-by-step explanation:
correct on edge
suppose you lift a laptop that weighs 4.1 pounds off the floor onto a shelf that is 2 feet high. how much work have you done?
The required work done in lifting the laptop to a height of 2 feet will be 263.79 foot-poundal.
Total weight of the laptop is 4.1 pounds
Acceleration due to gravity = 32.17 ft/\(s^{2}\)
Now the height to which the laptop has been lifted = 2 feet
Since, there is no mentioned velocity of the laptop, therefore the kinetic energy will be zero
Therefore, the total work in lifting the laptop will be equal to the change in potential energy.
Potential energy is the energy that comes by virtue of its position with reference to other
Therefore, potential energy = mgh
Where, m = mass of the laptop = 4.1 pounds
g = acceleration due to gravity = 32.17 ft/\(s^{2}\)
h = height to which the laptop is lifted = 2 feet
Therefore potential energy = (4.1)(32.17)(2) = 263.79 foot-poundal
263.79 foot-poundal is the required work done.
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find the inverse laplace transform of 8s 2s2−25s>5
The value of the function 8s/ 2s^2−25s using inverse Laplace transform is equal to 4e^(25t/2).
Function is equal to,
8s/ 2s^2−25s
Value of 's' after factorizing the denominator we get,
2s^2−25s = 0
⇒ s( 2s -25 ) =0
⇒ s =0 or s =25/2
Now apply partial fraction decomposition we get,
8s/ 2s^2−25s = A/s + B /(2s -25)
Simplify it we get,
⇒ 8s = A(2s -25) + Bs
Now substitute s =0 we get,
⇒ 0 = A (-25) + 0
⇒ A =0
and s = 25/2
⇒8(25/2) = A(2×25/2 -25 ) + B(25/2)
⇒100 = B(25/2)
⇒B = 8
Now ,
8s/ 2s^2−25s = 0/s + 8 /(2s -25)
⇒ 8s/ 2s^2−25s = 8 /(2s -25)
Take inverse Laplace transform both the side we get,
L⁻¹ [8s / (2s^2 - 25s)] = L⁻¹ [8/(2s - 25)]
Apply , L⁻¹ [1/(as + b)] = (1/a)e^(-bt/a),
here,
a = 2 , b = -25
L⁻¹ [8s / (2s^2 - 25s)]
= L⁻¹ [8/(2s - 25)]
= (8/2) e^(25t/2)
= 4e^(25t/2)
Therefore, the value of inverse Laplace transform for the given function is equal to 4e^(25t/2)
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The above question is incomplete, the complete question is:
Find the inverse Laplace transform of 8s/ 2s^2−25s.
use cross multiply to solve 4/m-8 = 8/2
Please, i actually need help right now! 9th grade algebra 1.
Davids neighborhood is having a yard sale. Many of the neighbors brought bicycles and tricycles their children had out grown. The number of bicycles was 6 more than 3 times the number of tricycles. If there were 84 total wheels, how many tricycles were at the yard sale?
Answer:
8 tricycles
Step-by-step explanation:
Let x be the amount of bicycles and y be the amount of tricycles
We can set up a system of equations:
x=3y+6
2x+3y=84
We can solve using substitution
2(3y+6)+3y=84
Distribute
6y+12+3y=84
Combine like terms
9y+12=84
Subtract 12 from both sides
9y=72
Divide 9 from both sides
y=8
There were 8 tricycles at the yard sale
I need help with this please
Answer:
D
Step-by-step explanation: 5 are crossed rows by 3 and then 7 by 5 are shaded in and than is 2 different numbers in together multiplied equals 1.500 which is D
determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in example 7). [infinity] cos 4 n − cos 4 n 2 n = 1
The series is convergent because sn can be expressed as a telescoping sum, which means that the series will approach a finite value as n approaches infinity.
To determine whether the series [infinity] cos 4n − cos 4n/2n=1 is convergent or divergent by expressing sn as a telescoping sum, we can rewrite the terms using the identity cos 2x = 2cos²ˣ − 1:
cos 4n − cos 4n/2n=1 = 2cos^24n/2 − 1 − 2cos^24n/2n+1 + 2cos^24n+2/2n+2 − 1
This expression has a telescoping sum because each term cancels with the previous and next terms. So we can simplify it as:
s_n = (2cos² 2n − 1) − (2cos² 2n+1 − 1)
s_n = 2(cos² 2n − cos² 2n+1)
s_n = −2(cos² 2n+1 − cos² 2n)
Therefore, the series is convergent because sn can be expressed as a telescoping sum, which means that the series will approach a finite value as n approaches infinity.
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I need this answer quick please thanks
it will be 20 squares in step four
A relay race is 1/4 mile long and is run by 4-member teams. If each team member runs the same distance, what fraction of a mile does each team member run? Explain how you found your answer
Answer:
0.0625 miles
Step-by-step explanation:
There is a faster way but this way makes more sense
1/4 miles = 440 yards
440/4 (since 4 people)
110 yards per person
Put back into miles
Everyone ran 0.0625 miles
Please help im doing this for my sister ASAP!! is due tomorrow
Step-by-step explanation:
19 tens
18 hundreds
false
true
true
true
Write the following in ascending order a)4/10,49/100,357/10,1/1001 plz fast and correct
Answer:
1/1001,49/100,357/10,4/10 is the ascending order
Step-by-step explanation:
i hope this will help you :)