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3 years ago

6

Factor the binomial. 9x^4-64

1 answer:

kap26 [50]3 years ago

8 0

Answer:

The answer is the first one

Step-by-step explanation:

This is a difference of squares, meaning the first term is a perfect square, and the second term would be a perfect square if it were not negative. To factor it, find the square root of both the first an second term, the square root of 9x^4 is 3x^2 and the square root of 64 is 8. Put both of those numbers into 2 separate sets of parenthesis and one set will have + in between and the other will have -. It will look like the first option

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Leto [7]

The surface area of a cylinder is given by

$A_A = 2\pi rh$

which is the surface area of cylinder A.

To compute the surface area of cylinder B, we have to map $(r,h)\mapsto (2r, 2h)$ and we have the following formula

$A_B = 2\pi(2r)(2h)$

If we manipulate the second expression, we have

$A_B = 8\pi rh$

Which implies

$\dfrac{A_B}{A_A} = \dfrac{8\pi rh}{2\pi rh} = 4$

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3 years ago

A pack of candy bars has 6 bars. Each bar weighs 3.86 ounces. How much does the pack weigh?

san4es73 [151]

Answer:

23.16 punces

Step-by-step explanation:

6x3.86=23.16

3 0

3 years ago

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What is the vertex form of y = −2x^2 + 4x + 3?

sdas [7]

Answer:

y = -2 ( x - 1)² + 5

Step-by-step explanation:

formula for the vertex: y = a (x - h)² + k where (h, k) is the vertex

y = −2x^2 + 4x + 3

y = -2 (x² - 2x + 1) + 5

y = -2 ( x - 1)² + 5

h = 1

K = 5

5 0

4 years ago

The foot of an extension ladder is 3 ft from a wall. The height that the ladder reaches on the wall and the length of the ladder

sweet-ann [11.9K]

Answer:

The length of the ladder is 5 feet

Step-by-step explanation:

Please kindly check the attached file for explanaion

4 0

3 years ago

What is the least number that has both 6 and 10 as factors

kkurt [141]

I believe the anwser is 2

8 0

3 years ago

Read 2 more answers