LAYOUTS A rectangular plaza has a walking path along its perimeter in addition to two paths that cut
across the plaza as shown in the figure.
135
2
3
50°
a. Find the measure of 21.
b. Find the measure of 24.
c. Name a pair of vertical angles in the figure.
d. What is the measure of 22?

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Which of the following shows the length of the third side, in inches, of the triangle below