Sally seair buys a sailboat. the price, including tax, is $5,275.00. she finances the boat over 36 months after making a $500 down payment. the true annual interest rate is 15%. what are sally's monthly payments (principal plus interest)?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

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) = .

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.