Answer:
f(x) = (x + 6)² - 29
Step-by-step explanation:
Given
f(x) = x² + 12x + 7
To complete the square
add/subtract ( half the coefficient of the x- term )² to x² + 12x
x² + 2(6)x + 36 - 36 + 7
= (x + 6)² - 29, thus
f(x) = (x + 6)² - 29
Answer:
B because they are the same angle
30.16 - 17.56 is 12.6 then 12.6/5 = 2.52
6 / 21.6 = 1 / x
cross multiply
6x = 21.6
x = 21.6/6
x = 3.6
so ur answer is A : 1 in : 3.6 ft