At the museum, Melanie sat down to draw a dinosaur exhibit to scale. The height of the dinosaur in the drawing is 3.75 inches and the
actual height of the exhibit is 15 feet. What scale factor did Melanie
use to sketch the dinosaur?

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%

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*