Answer:
$18.5
Step-by-step explanation:
222 ÷ 12 = 18.5
espacio muestral de lanzar al azar dos lapices con 4 caras de cada uno
Answer:
8
Step-by-step explanation:
porque no lo entiendo lo siento lol
or Of the 18 clients at Alana's salon, 8 of them have brown hair. What is the probability that a randomly selected client at Alana's salon has brown hair? Write your answer as a fraction or whole number. P(brown) =
Answer:
8/18 = 44.44%
To indirectly measure the distance across a river, Houa stands on one side of the river and uses sight-lines to a landmark on the opposite bank. Houa draws the diagram below to show the lengths and angles that she measured. Find PRPR, the distance across the river. Round your answer to the nearest foot.
According to the Houa's drawing the distance across the river PR is
198.95 feetHow to measure the distance PRThe length of line PR is calculated using the knowledge of similar triangles
While similar triangles is a term used in geometry to mean that the respective sides of the triangles are proportional and the corresponding angles of the triangles are congruent.
Hence assuming the corresponding angles of the triangle are congruent then the side should be in proportions
Examining the figure shown, the pair of equivalent sides are
PO and OC, PR and RE,
The solution is worked out using sides PO and OC, PR and RE,
PO / OC = PR / RE
let PR be equal to y such that PO = 140 + y
(140 + y) / 230 = y / 135
cross multiplying
135(140 + y) = 230y
Expanding
18900 + 135y = 230y
collecting like terms
18900 = 230y - 135y
95y = 18900
y = 198.95 feet
Hence PR = 198.95 feet
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III. Write each quadratic equation in standard form
1. 3x-2x² = 7
2.5-2x² = 6x
3.(x+3)(x+4)=0
4.(2x + 7)(x-1)=0
5,2x(x-3) = 15
ax²+bx+c=0
Answers are attached
What is the solution to 5(m - 2) – 10 = 6+2(1 - m)?
Enter your answer in the box.
m =
Answer:
m = 4
Step-by-step explanation:
Answer:
m=4
Step-by-step explanation:
5(m-2)-10=6+2(1-m)
5m-5*2-10=6+2*1-2*m
5m-10-10=6+2-2m
5m-20=8-2m
5m+2m=8+20
7m=28
m=28/7
m=4
Jonah teaches pet-training classes at the happy tails doggy daycare. yesterday, he taught 2 tricks to a group of dogs during a 30-minute class. jonah decided to create a longer class lasting 75 minutes. if he teaches tricks at the same rate, how many tricks will jonah teach during the 75-minute class?
The tricks that Jonah will teach during the 75-minute class are 5 tricks. The result are obtained by multiplying the teaching speed by the class time duration. This is a problem with comparison.
How to solve a problem with comparison?When someone has a teaching speed on amount of the chapters, the longer they teach, the more amount of the chapters they teach.
It is given that
Jonah taught 2 tricks per 30-minute classHe created the longer class, 75-minute classHow many tricks will Jonah teach during the 75-minute class?
From that information, we get the teaching speed is 2 tricks/30 minutes.
The tricks that Jonah will teach during the 75-class are
= the teaching speed × class time duration
= 2 tricks/30 minutes × 75 minutes
= 1/15 × 75
= 5 tricks
Hence, the tricks that Jonah will teach during the 75-minute class are 5 tricks.
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If y = 3x^3 +2x and dx/dt =5, find dy/dt when x =2. dy/dt =
When x = 2 and dx/dt = 5, the value of differentiation, dy/dt is equal to 190.
The problem states that y = 3x^3 + 2x and dx/dt = 5, and we are required to find dy/dt when x = 2.
To solve this problem, we need to use the chain rule, which is a formula for computing the derivative of a composite function. The chain rule states that if y = f(u) and u = g(x), then dy/dx = dy/du * du/dx. In other words, to find the derivative of a composite function, we need to find the derivative of the outer function and multiply it by the derivative of the inner function.
Using the chain rule, we can find dy/dx as follows:
y = 3x^3 + 2x
dy/dx = 9x^2 + 2
Now, to find dy/dt when x = 2, we need to substitute x = 2 into the above equation and evaluate it. We also need to use the given information that dx/dt = 5.
dy/dt = (dy/dx) * (dx/dt)
Substituting x = 2 and dx/dt = 5 into the above equation, we get:
dy/dt = (9(2)^2 + 2) * 5
dy/dt = (36 + 2) * 5
dy/dt = 190
Therefore, dy/dt = 190 when x = 2.
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Endure all, a manufacturer of batteries claims that the lifetime of their batteries is normally distributed with a mean of 500 hours and a standard deviation of 40 hours. What is the probability that an endure all battery selected at random will last more than 550 hours?.
Using the z-score a randomly selected Endure All battery has a 10.56% chance of lasting more than 550 hours.
What is the z-score?How closely a value relates to the mean of a set of values is measured using a Z-score.
Z-score is calculated using standard deviations from the mean.
When a data point's Z-score is 0, it indicates that its entire score is equal to the mean score.
So, how far the raw score deviates from the mean is determined using the Z score.
These steps are used to determine the Z score:
z = (x - μ)/σ
We know that: x > 550 and μ = 500, σ = 40
z = 550 - 500 / 40
z = 1.25
Using the normal distribution graph as a guide:
P(z > 1.25) = 1 - P(z < 1.25)
P(z > 1.25) = 1 - 0.8944
P(z > 1.25) = 0.1056
Therefore, using the z-score a randomly selected Endure All battery has a 10.56% chance of lasting more than 550 hours.
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Picture of question:
Answer:
The width is 5 feet.
Step-by-step explanation:
If the length of the banner is 15 feet, and the length of the banner is 3 times the width of the banner, then set up an equation to find the width of the banner.
banner length/3 = banner width
15/3 = w
w = 5
The width of the banner is 5 feet.
A(7,-10), B(-3, 4) and C(8,-9)
Find the centroid of the triangle with the given vertices
Take the average of the three points. Add their coordinates together:
(7, -10) + (-3, 4) + (8, -9) = (7 - 3 + 8, -10 + 4 - 9) = (12, -15)
Divide each coordinate by 3:
(12, -15) / 3 = (4, -5)
Evaluate each expression 10+8^3 divid 16
Answer:
42
Step-by-step explanation:
= 10+8^3/16
= 10+512/16
= 10+32
= 42
Look at the picture. Need some help
Answer:
y=-5
Step-by-step explanation:
When the x-value on the graph is equal to -4, the y-value is equal to -5
One solution to the problem below is 4.
What is the other solution?
y² - 16 = 0
Answer:
The 2 answers are 4 and -4
Step-by-step explanation:
What are the x-intercept and y-intercept of the line y 4x 5?.
x-intercept and y-intercept of the line y = 4x+5 is -5/4 and 5 respectively.
What is the equation straight line?
The given equation Y = mx + c is the general equation for a straight line, where m denotes the line's slope and c the y-intercept. It is the version of the equation for a straight line that is used most frequently in geometry. There are numerous ways to express the equation of a straight line, including point-slope form, slope-intercept form, general form, standard form, etc. A straight line is a geometric object with two dimensions and infinite lengths at both ends. The formulas for the equation of a straight line that are most frequently employed are y = mx + c and axe + by = c. Other versions include point-slope, slope-intercept, standard, general, and others.
The equation of the line is y = 4x+5
So the y-intercept is (x=0)
y = 5
And the x-intercept is (y=0)
4x +5 =0
x = -5/4
Hence, the x-intercept and y-intercept of the line y = 4x+5 is -5/4 and 5 respectively.
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View Policies Current Attempt in Progress Consider a number, \( n \). Multiply by 5. Add 8. Multiply by 4. Add 9. Multiply by 5. Subtract 105. Divide by 100, Subtract 1. What is the result?
The View Policies Current Attempt in Progress Therefore, the result of performing the given operations is the original number n.
The result of performing the given operations on a number n is 1 100/100(5(4(n.5+8)+9)-105)-1), which simplifies to n.
Multiply by 5: 5n
Add 8: 5n +8
Multiply by 4: 4(5n+8)
Add 9: 4(5n+8) +9
Multiply by 5: 5(4(5n+8) +9 )
Subtract 105: 5(4(5n+8) +9 ) -105
Divide by 100: 1/100 (5(4(5n+8) +9 ) -105)
Subtract 1: 1/100 (5(4(5n+8) +9 ) -105) -1
Simplifying the expression, we find that 1/100 (5(4(5n+8) +9 ) -105) -1is equivalent to n. Therefore, the result of performing the given operations is the original number n.
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Mr. Martinez is buying food for a party. Hamburger patties are sold in packages of 6 and hamburger buns are sold in packages of 8. If he wants to have an equal number of each, what is the LEAST number of hamburger patties and buns that Mr. Martinez will have to buy?
Enter the correct answer in the box.
Answer:
24 is the least number of hamburger patties and buns Mr. Martinez will have to buy.
Step-by-step explanation:
You need to find the LCM of 6 and 8. The number they have first have common is 24
find the cost of four score of plate at 50k each and three dozens of spoon at 20k each
1. 3 − = 9
2. − 5 = 2
3. − = 16
4. 2 − = 5
5. − 3 = 4
Answer:What is the simplified form of each expression? A 9−2. 9-2 = 1. 92 ... Problem 4. Problem 3 continued. Problem 2. B. 1 x. −5. 1 x -5 = 1 , x-5.
Step-by-step explanation:
Aubrey finished 2/9 of a project on Monday and 1/4 of the project of Tuesday. How much of the project has Aubrey completed?
Answer:
17/36
Step-by-step explanation:
We have to find a common denominator, so the first common denominator for 4 and 9 is 36. 9x4=36, so we multiply 2 by 4, which equals 8. 4x9-36, so we multiply the 1 by 9, and get 9. Then we add the numerators, 8 and 9, and get 17. So it's 17/36
an analytic definition of a parabola states that any point on the parabola is equidistant to the
The analytical definition of a parabola states that the set of points in a plane is equidistant from a fixed point called "focus" and a fixed line called the "directrix line".
What is the analytical definition of a parabola?The analytical definition of a parabola states that "set of all points in a plane are equidistance from the focus and the directrix of the parabola where the focus is not on the line.
The equation of a parabola is
y = ax² + bx + c
or
y = a(x - h)² + k
Here the coordinates (h, k) of a point on the parabola is said to be its "vertex" and the "focus" is at (h, k + 1/4 a).
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Write an equation in point-slope form that has a slope of -2 and passes through the point (-3,4)
The equation in point -slope form with a slope of -2 and passing through the point (-3,4) is y = -2x - 2.
The point-slope form of an equation is given by:
y - y1 = m(x - x1)
where m represents the slope, and (x1, y1) represents a point on the line.
Given that the slope (m) is -2 and the point (-3,4) lies on the line, we can substitute these values into the equation:
y - 4 = -2(x - (-3))
Simplifying:
y - 4 = -2(x + 3)
Expanding the expression on the right side:
y - 4 = -2x - 6
Adding 4 to both sides to isolate y:
y = -2x - 2
This equation represents a line with a slope of -2, indicating that for every unit increase in x, the y-value decreases by 2. The line passes through the point (-3,4), meaning that this point lies on the line.
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In a ball game, a player passes a ball to a teammate. Both players are on the ground. Ignore air drag. The ball goes the farthest when the toss angle is 60 30 15 45
The ball travels the farthest when the toss angle is 45 degrees. At this angle, the horizontal and vertical components of the ball's initial velocity are balanced, maximizing the projectile's range.
This occurs because the horizontal distance covered by the ball is determined by the initial velocity in that direction, while the vertical distance is affected by the gravitational force pulling the ball downward.
When the toss angle is less than 45 degrees (e.g., 15 or 30 degrees), the vertical component of the initial velocity increases, causing the ball to spend more time in the air and resulting in a shorter horizontal distance traveled. On the other hand, when the toss angle exceeds 45 degrees (e.g., 60 degrees), the vertical component of the initial velocity decreases, leading to a more rapid descent and again reducing the overall range.
Therefore, a toss angle of 45 degrees provides the optimal balance between the horizontal and vertical components of the ball's velocity, allowing it to cover the greatest distance when thrown from ground level.
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What is the value of q?
If you borrowed $10,000 at 6% interest rate for 1 year, what is the interest payment at the end of the year?
Answer:
$600
Step-by-step explanation:
I = prt
I = 10000 x .06
I = 600
Answer:
$600
Step-by-step explanation:
$10,000 x 0.06 = $600
Write each system as a matrix equation. Identify the coefficient matrix, the variable matrix, and the constant matrix.
[y=3x-7 x =2]
The coefficient matrix is [ 0 3 ; 1 0 ], the variable matrix is [ y ; x ], and the constant matrix is [ -7 ; 2 ] for the given system of equations.
The given system of equations can be written as a matrix equation. Let's represent the system as:
[y = 3x - 7
x = 2]
To write it as a matrix equation, we can arrange the coefficients, variables, and constants in matrices.
Coefficient Matrix:
The coefficient matrix contains the coefficients of the variables in the equations. In this case, we have:
[ 0 3 ]
[ 1 0 ]
Variable Matrix:
The variable matrix contains the variables themselves. In this case, we have:
[ y ]
[ x ]
Constant Matrix:
The constant matrix contains the constants on the right-hand side of the equations. In this case, we have:
[ -7 ]
[ 2 ]
Putting it all together, the matrix equation for the given system is:
Coefficient Matrix * Variable Matrix = Constant Matrix
[ 0 3 ] [ y ] [ -7 ]
[ 1 0 ] [ x ] = [ 2 ]
Therefore, the coefficient matrix is [ 0 3 ; 1 0 ], the variable matrix is [ y ; x ], and the constant matrix is [ -7 ; 2 ] for the given system of equations.
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2x + 5y = 9
The line perpendicular to the given line is?
Answer:
Step-by-step explanation:
Answer:
y=5/2 . *the question doesn't specify a y-intercept for the perpendicular line so just leave it as if it passes through 0.
Step-by-step explanation:
First, you isolate y to put the line in slope intercept form. Then, you take the slope and find the reciprocal(-5/2) then flip the sign giving you a slope of 5/2.
A given rectangle has an area of 20 square feet. What is the length for various widths??
Answer:
The area of a rectangle is the length multiplied by the width, so the width can be any factor of 20.
1, 2, 4, 5, 10 or 20
What four adjacent square numbers have a diagonal sum of 161? what four adjacent square numbers have a diagonal sum of 45? what three adjacent vertical numbers add up to 156?
The four adjacent square numbers with a diagonal sum of 45 are 2^2, 3^2, 4^2, and 5^2, which are 4, 9, 16, and 25.
To find the four adjacent square numbers with a diagonal sum of 161, we can start by considering the square numbers. Let's call the four numbers x^2, (x+1)^2, (x+2)^2, and (x+3)^2. The diagonal sum can be expressed as: x^2 + (x+1)^2 + (x+2)^2 + (x+3)^2 = 161. Simplifying the equation: x^2 + (x^2 + 2x + 1) + (x^2 + 4x + 4) + (x^2 + 6x + 9) = 161; 4x^2 + 12x + 14 = 161; 4x^2 + 12x - 147 = 0. Using the quadratic formula, we can solve for x: x = (-12 ± √(12^2 - 44(-147))) / (2*4); x = (-12 ± √(144 + 2352)) / 8; x = (-12 ± √2496) / 8
x = (-12 ± 49.96) / 8. Solving for x, we have two possible solutions: x = 4 or x ≈ -9.496. Since we are looking for positive square numbers, we can discard the negative solution. Therefore, the four adjacent square numbers with a diagonal sum of 161 are 4^2, 5^2, 6^2, and 7^2, which are 16, 25, 36, and 49.
To find the four adjacent square numbers with a diagonal sum of 45, we can follow the same approach. The equation would be: x^2 + (x+1)^2 + (x+2)^2 + (x+3)^2 = 45. Simplifying this equation and solving for x, we find that x = 2. Therefore, the four adjacent square numbers with a diagonal sum of 45 are 2^2, 3^2, 4^2, and 5^2, which are 4, 9, 16, and 25. To find three adjacent vertical numbers that add up to 156, we need more information about the arrangement of the numbers. Please provide additional details or context about the arrangement of the numbers so that we can solve the problem accurately.
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carson kelly, a catcher for the arizona diamondbacks, hit 18 home runs in 2019. if his home-run-hitting ability is expected to grow by 12 percent every year for the following five years, how many home runs is he expected to hit in 2024?
Carson Kelly is expected to hit approximately 31 home runs in 2024.
To find how many home runs Carson Kelly is expected to hit in 2024, we can use the formula for compound interest, where the initial amount is the number of home runs he hit in 2019, and the interest rate is the expected growth rate of his home run hitting ability, which is 12 percent or 0.12 as a decimal.
Let H be the number of home runs hit in 2019, and H(n) be the number of home runs hit in year n, then we can write:
H(n) = H * (1 + r)^n
Where r is the growth rate, and n is the number of years into the future.
If we plug in the given values, we can find the number of home runs Carson Kelly is expected to hit in 2024, which is 5 years after 2019.
H = 18 (number of home runs in 2019)
r = 0.12 (growth rate)
n = 5 (number of years into the future)
H(5) = 18 * (1 + 0.12)^5
H(5) = 18 * 1.7623
H(5) = 31.9214
It's important to note that this is simply an estimate based on the given growth rate, and the actual number of home runs he hits in 2024 may vary based on many factors, including injuries, team support, and the skill of opposing pitchers, among others.
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Standard 8.EE.A.1 -
Which expression is equivalent to (3x^2)^4?
2 points
(a) 12x^8
(b) 12x^6
(c) 81x^6
(d) 81x^8