Select the correct answer. Which equation has infinitely many solutions?
A) 12.8 + 32x + 10.2 = 32x + 2.6

B) 1/13(26x - 169) = 1/12(-156 + 24x)

C) 2(3 – 2x)

D)1/2x(3/2 - 2/3) +24 = 4/18

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

Evaluate cos2θ for cosθ = square root of 3/2