The center of an airplane propeller is 13 feet off the ground and the radius of the propeller is 3 feet. The B blades of the propeller are set at pi/6, 5pi/6, and 3pi/2 radians from 0 radians directly to the right of the center of the propeller. What is the height of the the tip of each propeller in this situation

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.