4z^2=144 thank you whoever helps

z = ± 6

Step-by-step explanation:

Guven

4z² = 144 ( divide both sides by 4 )

z² = 36 ( take the square root of both sides )

z = ± = ± 6

x-3y=4

step-by-step e

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