Answer:
4, -3
Step-by-step explanation:
The quadratic formula is 
.
When using the formula for both the negative and positive value of the sqrt, you will get:
x = 4, -3
Answer: 3.78m
Step-by-step explanation: I hope that helps
Sampling bias occurs when some members of a population are systematically more likely to be selected in a sample than others. From this definition,
For sample 1, Every fifth person who enters Little Casesars Arena for a Red Wings game. This is not biased because no person is more likely to be selected than another
For sample 2, Every tenth name in the phone. This is also not biased
because no person is more likely to be selected than another
A2= 1
a3=-3
a4=-7
the common difference is -4
