Question

The area of a TRIANGLE is 15x^(2)+9x. If the base is 5x+3, then what is the height?

Answer 1

0.5*base*height = area

0.5*(5x+3)*height = 15x^2+9x

0.5*height = (15x^2+9x)/(5x+3)

0.5*height = 3x(5x+3)/(5x+3)

0.5*height = 3x

height = 3x/0.5

height = 6x