Answer:
Step-by-step explanation:
30j + 24+ 18j
48j + 24
$6 . It will cost $6 because spending 6 dollars , 50 times will equal $300
Answer: 1692
Step-by-step explanation:
Formula to find the sample size :
Given : Confidence level :
⇒ significance level =
z-value for 90% confidence interval (using z-table)=
Prior estimate of the population proportion (p) of customers who keep up with regular vehicle maintenance is unknown.
Let we take p= 0.5
Margin of error : E= 2%=0.02
Now, the required sample size will be :
Simplify , we get
Hence, the required sample size = 1692
Well a flat line equals 180 so you use the angle of a and try to find the other side of the angle, so you you do 180 subtracted by 125 which you get 55. Since B is parallel to the angle, the answer is 55 degrees.