Answer:
the answer is b wait I can also be c and d
X^2 + 2xy + -x + y^2 + -y + -12
Answer:
0.78125 or 25/32
Step-by-step explanation:
5^2 - 25
2^5 = 32
<span>Given that the average
time it takes to replace a defective car radiator is 70 minutes with a
standard deviation of 12 minutes.
The 90% confidence interval of a random
sample of 50 is given by

</span>