A 13 ft ladder is laying on a wall, the angle the ladder makes with the floor is 45 degrees. How high off the ground is the top of the ladder? Use the function y = 13cos (θ) to help with this

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

493 would be the correct answer

step-by-step explanation: