Two angles are supplementary angles if the sum of their measures is 180°. find two supplementary angles such that the measure of the first angle is 6° less than three times the measure of the second.

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

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.

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean