Mathematics, 15.02.2021 20:30 12539463
Last year you needed about 5 minutes for each Math question on average. This year you only need about 90 seconds for each Math question on average. What is the % change in the time need per question?
Answers: 1
Mathematics, 21.06.2019 14:10, shawnnoteman1234
What is the perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1? p = 2x + 2y + 18 p = 2x + 2y + 14 p = x + y − 9 p = x + y + 7
Answers: 3
Mathematics, 21.06.2019 19:50, Roshaan8039
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) = .
Answers: 3
Last year you needed about 5 minutes for each Math question on average. This year you only need abou...
Mathematics, 18.02.2020 01:57