Beginning with the equation Ax + By = C, Greg substituted 0 for y to get Ax + B(0) = C, or Ax = C. Then he divided both sides by A to get x = C/A.

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

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