Question

The formula for the area of a triangle is Area=2(base)(height). Write an

expression for the height of a triangle that has an area equal to 10x²+20x and a
base equal to 20x.

Answer 1

B

Explanation:

area = 10x^2 + 20x

base = 20x

10x^2 + 20x = 0.5(20x)(height)

10x^2 + 20x = 10x(height)

(10x^2 + 20x) / 10x = height

`(10x^2 + 20x)/(10x) = (10x + 20)/(10) = (x + 2)/(1) = x + 2`

The answer is B