QUICK!! 18x^2+21x-60=0 pls give me the steps as well

Step-by-step explanation:

Divide both sides of the equation by 3

Write 7x as a difference

Factor out 3x from the expression

Factor out -4 from the expression

Factor out 2x + 5 from the expression

When the product of factors equals 0 , at least one factor is 0

Solve the equation for X

Move constant to R.H.S and change its sign

Calculate the difference

Divide both sides of the equation by 2

Calculate

Again,

Move constant to RHS and change its sign

Calculate the sum

divide both sides of the equation by 3

Calculate

Hope this helps..

Best regards!!

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

answer: your answer is a