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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!! Factor. 64x^9 − 125y^6

Mathematics

1 answer:

shepuryov [24]3 years ago

7 0

$Identity: \\ \boxed{ {a}^{3} - {b}^{3} = (a - b)( {a}^{2} + ab + {b}^{2}) } \\ \\ 64 {x}^{9} - 125 {y}^{6} \\ \\ = {(4 {x}^{3} )}^{3} - {(5 {y}^{2} )}^{3} \\ \\ = (4 {x}^{3} - 5 {y}^{2} )( \: {(4 {x}^{3} )}^{2} + 4 {x}^{3} \times 5 {y}^{2} + {(5 {y}^{2} )}^{2} \: ) \\ \\ = (4 {x}^{3} - 5 {y}^{2} )(16 {x}^{6} + 20 {x}^{3} {y}^{2} + 25 {y}^{4} )$

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A pizza shop sells three sizes of pizza, and they track how often each size gets ordered along with how much they profit from ea

777dan777 [17]

Answer:

The mean and standard deviation of Y is $6.56 and $2.77 respectively.

Step-by-step explanation:

Consider the provided information.

Let Y represent their profit on a randomly selected pizza with this promotion.

The company is going to run a promotion where customers get $2 off any size pizza.

Therefore, $Y=\text{Profit}-\$2$

$Y=X-\$2$

So the mean will be reduced by 2.

$\mu_Y=\mu_X-\$2$

$\mu_Y =\$ 8.56 - \$2$

$\mu_Y =\$6.56$

If we add or subtract any constant number from a given distribution, then the mean is changed by the same number(i.e constant number) but the standard deviation will remain the same.

Therefore $\sigma_Y=\sigma_X=2.77$

Hence, the mean and standard deviation of Y is $6.56 and $2.77 respectively.

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3 years ago

What is 1/2 + 3/4???

Papessa [141]

1/2 + 3/4 =

1/2 = 2/4

2/4 + 3/4 = 5/4 = 1 1/4

Answer = 1 1/4

Hope this helped☺☺

8 0

3 years ago

Read 2 more answers

Part C <br> Using the rise and run from part B, what is the slope of the line?

Leni [432]

Hey there, Delilah
What's it like in New York city?
I'm a thousand miles away
But, girl, tonight you look so pretty
Yes, you do
Time square can't shine as bright as you
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3 years ago

How to find binary equivalent of a number.

nasty-shy [4]

An easy method of converting decimal to binary number equivalents is to write down the decimal number and to continually divide-by-2 (two) to give a result and a remainder of either a “1” or a “0” until the final result equals zero. So for example. Convert the decimal number 29410 into its binary number equivalent.

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2 years ago

A person gets on a Ferris wheel at the starting point. The starting point is 15 feet off the ground. The Ferris wheel has a radi

lisov135 [29]

<h2>Answer:</h2>

$\boxed{\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

<h2>Explanation:</h2>

<em>The height of the rider from the ground after the Ferris wheel</em> equals <em>the starting point is 15 feet off the ground </em><em>plus </em><em>the radius of the Ferris wheel </em><em>plus </em><em>the opposite side of the triangle ΔABC </em>(See figure below).<em> </em>Hence our goal is to find this side. We have the angle $11\pi /2=165^{\circ}$ , therefore the angle ∠BAC = 165° - 90° = 75°. So this side can be found using trigonometry:

$\overline{BC}=\overline{AB}sin(75^{\circ})=50sin(75^{\circ})=\frac{25}{2}(\sqrt{6}+\sqrt{2})$

Finally, the height is:

$H=\frac{25}{2}(\sqrt{6}+\sqrt{2})+15+50 \\ \\ \boxed{H=\frac{25}{2}(\sqrt{6}+\sqrt{2})+65}$

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3 years ago