All categories

4 years ago

What is the factored form of the expression? 49b^2 – 64

Mathematics

1 answer:

nika2105 [10]4 years ago

4 0

Answer:

(7b-8) (7b+8)

Step-by-step explanation:

49b^2 – 64

This is the difference of squares

(a^2 -c^2) = (a-c) (a+c)

a^2 = 49b^2 so a = 7b

c^2 = 64 so c = 8

(49b^2 -64) = (7b-8) (7b+8)

You might be interested in

I need help like NOW pronto im confused HELP

Igoryamba

Answer:

A) A dilation by a scale factor of 2, centered at the origin, followed by a 180° clockwise rotation about the origin.

Step-by-step explanation:

a dilation by a scale factor of 2, centered at the origin will double its size and move point A from (-2,2) to (-4,4). Then the clockwise rotation of 180° degrees will rotate the figure so that it's point A (now called point D) will be at (4,-4).

7 0

3 years ago

Read 2 more answers

Slope intercept form

elena-14-01-66 [18.8K]

The slope intercept form is y = me+b

5 0

3 years ago

Peter ran 15 miles without stopping during the marathon. Anne ran the distance that Peter ran before she stopped. How far did

Anika [276]

The Answer Should be C

8 0

4 years ago

Why did Lola's father pass the hotel?

mario62 [17]

D C D C B are the correct answers in order

6 0

3 years ago

Read 2 more answers

Please help me with this question!!!!!

amm1812

Answer:

B. $H(x)=-.008(x-82)^{2}+83$

Step-by-step explanation:

Well lets graph the following equation first,

H(x) = -.011(x - 82)^2 + 75

Then lets graph all the other equations.

Look at the image below↓

So A.

The purple line does not go farther or higher,

so A. is incorrect

The black line goes higher and farther,

meaning it is correct.

The red line goes farther but not higher.

So it is incorrect

Again the blue line does not go farther of higher.

So its wrong.

Thus,

answer choice B. $H(x)=-.008(x-82)^{2}+83$ is correct.

Hope this helps :)

3 0

4 years ago