:(
asher cut five sets of boards to build triangular tables. which of the following sets of side lengths would form tables shaped like a right triangle?
27 in, 36 in, 45 in
10 in, 24 in, 26 in
18 in, 22 in, 28 in
20 in, 21 in, 31 in
28 in, 45 in, 53 in

Ateacher asked his students to vote for an animal to be their class pet. five-eighteenths of the students voted for a rabbit, voted for a snake, and voted for a hamster. which statement is true? more students voted for a hamster than a snake. more students voted for a snake than a rabbit. more students voted for a rabbit than a hamster. more students voted for a snake than a hamster.

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .