Question 6 of 10
2 Points
At City Community College, every freshman must take Math 101. The math
department wants to know whether students who take this class in their
second semester get better grades than students who take the class in their
first semester. Which principle of experimental design can the math
department best use to include a variety of students in both the first and
second semester treatment groups of the study?
O
A. Direct control
O
B. Replication
O
C. Randomization
O
D. Blocking

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

i think the answer is a p = 78

step-by-step explanation:

there are 6 sides of a hexagon, multiply 13 x 6