Factor problems 13 - 16 by using the perfect squares method. 13. x2 – 14x + 49

A. (-x – 7)(-x – 7)
B. (x + 7)(x – 7)
C. (x + 7)(x + 7)
D. (x – 7)(x + 7)
E. (x – 7)(x – 7)
F. This polynomial cannot be factored by using the perfect squares method.
it is not D, C or, F

the answer is a

step-by-step explanation:

39.00 x 24 = total installment price

carrying installment price - cash price

needed to save the .00/

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!

c

step-by-step explanation: