what is the scale factor? two triangles are similar. The original triangle has side lengths of 22, 36, and 40 units. The longest side the new triangle has length of 60 units.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Does the point (1, sqrt 7) lie on circle shown.

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?