Jonathan would like to retire in 10 years. He currently has $34,000 in an investment account. This account earns 6.5% interest compounded semi annually. At the end of 10 years, he would like to have $422,000 in the account. To reach this dollar amount, how much will Jonathan need to invest semi annually?

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

show us the triangle so we can answer it