Person a leaves his home to visit his cousin, person b, who lives 263 miles away. he travels at an average rate 46 miles per hour. one half-hour later, person b leaves her house to visit person a, traveling at an average rate of 74 miles per hour. how long after person bleaves will it be before they meet? it will take how many hours for both people to meet after b leaves

Which expression is equivalent to? assume x > 0 and y > 0.

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.

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =