For n ? n, suppose that a ? n2n and |a| = n+1. prove that a contains a pair of distinct integers a, b such that a divides b.

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

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