Using the graph of f(x) = log2x below, approximate the value of y in the equation 2^2y = 3.

a. y ≈ 4.01
b. y ≈ .79
c. y ≈ 1.58
d. y ≈ 0.47

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

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.

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4