The lines below are perpendicular. if the slope of the green line is 2/3, what is the slope of the red line?

D. -3/2

Step-by-step explanation:

if two lines are perpendicular, their gradients will multiply to give -1

For example, green line, m=2/3

2/3 × M2 =-1

M2=-3/2

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet