Michael and Christopher were supposed to add up the terms of the geometric sequence 1,3,9,…,3^20

and then find the remainder when divided by 40.

Michael did the question correctly and got the answer M, but Christopher took the remainders of each term separately and then added all these remainders up to get the incorrect answer C. What is C−M?

Through: (-3,-3) parallel to y= 7/3x+3

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.