Answer:
4.0486
Step-by-step explanation:
The margin of error is calculated using 
Where n=60 is the sample size and
is the population standard deviation.
The critical value corresponding to 95% confidence interval is 
We substitute the values to obtain;


Answer:
9
Step-by-step explanation:
90 x 1/9 =9
Answer:
m∠8 = 4x
Step-by-step explanation:
Angle 8 is the same angle measure of angle 1, which is m∠1 = 4x
Answer:
D
Step-by-step explanation:
Since 5 is being multiplied with q dividing both sides by 5 would cancel out the 5 from 5q leaving us with q and on the other side of the equal sign 5/7 or 1.4 is going to be the value of q