Which equation of the least squares regression line most closely matches the data set? x y
2 100
4 83
6 50
8 35
10 23
yˆ=−0.31x+37.3
yˆ=−2.3x+97.9
yˆ=−10.1x+118.8
yˆ=−0.09x+11.5

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7