Which of the following functions represent f(n), the number of squares in the figure n? A) f(n) = n^2 + 1

B) f(n) = n^2 - 1

C) f(n) = (n + 1)^2 - 1

D) f(n) = (n + 1)^2 - 1

00

step-by-step explanation:

5.7622

step-by-step explanation:

the ten thousandths place is the 2. you round it up if, that number in whatever place is 5 or higher.

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36