I believe the answer should be 2
To find the measure of an interior angle of any regular polygon, we use the formula:
180 * (n-2) / n,
where n is the number of sides in the regular polygon.
Therefore, if there are 15 sides in the regular polygon, your answer would be
180 * (15-2) / 15,
or when simplified,
180 * 13 / 15
2340 / 15
156 degrees.
Thus, the measure of an interior angle of a regular polygon with 15 sides is 156 degrees.
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Answer: -1.51
Step-by-step explanation:
Let
be the population mean rating of car.
As per given , we have


Since population variance is known, so we use z-test.
Test statistic : 
, where n= sample size
= Sample mean
= variance
As per given ,
n=300



Put these values in formula we get



Hence, the value of the test statistic is z= -1.51 .
Answer:
7. 23
8. 18
9. 55
10. 17
Step-by-step explanation: