Sistema de ecuaciones lineales con dos incognitas [anoten procedimiento]

3×+7y=
-2×10y=77​

sine

step-by-step explanation:

answer:

your answer is: c. 196 7/8 in^3.

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: b.36 feet

step-by-step explanation: