The Richter scale measures the magnitude, M, of an earthquake as a function of its intensity, I, and the Intensity of a reference earthquake, Io. log(t) M Which equation could be used to find the intensity of an earthquake with a Richter scale magnitude of 4.8 in reference to an earthquake with an intensity of 1? OA. 4.8 = log(1) OB. 1 = log(4) O C. I = log(4.8) OD. log(8) 4.8 =log(1/I)

What are the sotions to the quadratic equation 9x^2=4

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?