1. the roof of a house is at a 20° angle. an 8 foot solar panel is to be mounted on the roof, and should be angled 38° relative to the horizontal for optimal results. how long does the vertical support holding up the back of the panel need to be?

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

|y + 2| > 6 {y|y < -8 or y > 4} {y|y < -6 or y > 6} {y|y < -4 or y > 4}