Select all the expressions that give the area of the figure in square units. 1. (5+6)x(3+2) 2. (8x6)-(3x4) 3. 6x8x2x3x4x5 4. (5x6)+(3x2) 5. 8x6

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

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