which equations represent the line that is parallel to 3x - 4y = 7 and passes through the point (-4,-2)? select two
options.
y=-3/4x+1
3x - 4y = -4
4x – 3y = -3
y-2=-3/4(x-4)
y+ 2 =3/4(x+4)

What is the common denominator for 3/5+3/4

Sum is 17 and their difference is 3

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) = .