Desmond decided to babysit for extra money over the summer. He decided to charge a flat rate of $15 to babysit and then charged $10 for every hour he babysat. ​

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

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

the answer is  

a.

4,624π mm2

step-by-step explanation: