the angle that is formed by the ground and the line that connects the tip of the shadow of a building at the tip of the building is 42 degrees. The distance from the tip of the shadow to the bottom of the building is 35 feet. What is the height of the building?

step-by-step explanation:

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step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15