Answer:
<h2>x = 35</h2>
Step-by-step explanation:
Because the angles are vertical angles, they must be equal.
3x + 7 = 112
3x = 105
x = 35
Check
3(35) + 7 = 112
112 = 112 Correct
Answer: D) randomized comparative design
Step-by-step explanation:
Randomized comparative design is an experiment which uses comparison of two or more treatments, also known as an experiment designed to show differences between two samples or populations which have being exposed to two different conditions or treatments are compared to each other. In the question above data collected before was compared to data gotten after the dangers of alcohol.
Answer:
10°, 30°, 50°
Step-by-step explanation:
the exterior angle is x°
adj interior angle is 2x°
interior angle is y
2x
so, x+y=180
y=180-x
180-x
2x
3x
180
x
60
{ x is less or equal than 60° }