2 years ago

Which is a factor of 144 − 49x2? 12 - 7x2 72 – 7x2 12 – 7x 72 + 7x

Mathematics

2 answers:

e-lub [12.9K]2 years ago

6 0

Answer:

Answer is C

Step-by-step explanation:

Vinil7 [7]2 years ago

5 0

Answer:

(12-7x)

Step-by-step explanation:

144 − 49x²

by observation, we can see that 144 = 12² and 49 = 7²

hence we can rewrite the equation

144 − 49x²

= 12² - 7²x²

= 12² - (7x)²

recall that the expression x² - y² = (x+y)(x-y)

hence,

12² - (7x)²

= (12 + 7x)(12-7x)

(12-7x) appears in the expression above, hence 12 -7x is a factor

You might be interested in

14. Which of the following is not a true statement about the scatter plot above?

harina [27]

Answer:

Step-by-step explanation:

5 0

2 years ago

The length of a picture frame is (8u - 12) inches. It’s width is 3/4 of its length. Express the width of the picture frame in te

dezoksy [38]

3/4(8u-12)..................

7 0

2 years ago

A farmer wants to fence an area of 6 million square feet in a rectangular field and then divide it in half with a fence parallel

pogonyaev

3x +2y A =xy = 6,000,000 y = 6,000, 000/x L = 2x + 12,000,000/x 3- (12,000,000/x^2) = 0 3 = 12, 000,000/x^2 sqrt x^2 = sqrt 4,000,000 x = 2,000 and y = 3,000 <span>
</span>

8 0

2 years ago

Which of the following points lies on the graph of the function y = 8x?

nignag [31]

Y = 8^x
For (0, 1): 1 ≠ 8^0 = 1
For (8, 1): 1 ≠ 8^8 = 16,777,216
For (2, 64): 64 = 8^2
For (0, 8): 8 ≠ 8^0 = 1

Therefore, option 3, (2, 64) is the correct answer.

8 0

2 years ago

Read 2 more answers

Plz help me solve this. and any song requests

LuckyWell [14K]

Answer:

Step-by-step explanation:

12(8)-9(8-6)-(12-9)(8)÷2=96-18-12 or 6(9)+(12-9)(8)/2=54+12

= 66 =66

3 0

2 years ago

Read 2 more answers