Answer:
B
Step-by-step explanation:
The answer is B (OB. Fifty people are put into a control group and nfty people are put into a test group. The control group is given a placebo and the
test group is given a new medication. Each group is asked about the side effects.) because an experiment requires a control group and a test group chosen at random.
The distance between (-22,15) and (30,-25) is 4√269 ≈ 65.6
Answer:
I think x=8
Step-by-step explanation:
5(x+7)+15=90
90 because it's a 90 degree angle
5x+35+15=90
5x+50=90
5x=40
x=8
Answer:
(5y−1)(y+1)
Step-by-step explanation:
Answer:
See explanation
Step-by-step explanation:
Assuming we want to solve for x in:
Then we factor to get:
Apply the zero product principle to get:
The question is not all that clear, so I assume you are solving for x in the completed quadratic equation.