Please help if your good at geometry:(

Y = theta = 32.68

Step-by-step explanation:

Formula

y^2 = x^2 + z^2  - 2*x*z * cos(theta)

Givens

y = 55

theta = ?

z = 50

x = 90

Solution

55^2 = 90^2 + 50^2 - 2*90*50 cos(theta)

3025 = 8100 + 2500 - 9000 cos(theta)      Combine the right

3025 = 10600 - 9000 Cos(theta)                Subtract 10600

3025 - 10600 = -9000 Cos(theta)

-7575 = - 9000 Cos(theta)                            Divide by - 9000

-7575/-9000 = cos(theta)

0.8417 = cos(theta)

cos-1(0.8417) = theta

theta = 32.68

283 square feet

step-by-step explanation:

good luck

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2