Answer:
no because at the end it is 669 not 696 so it is not repeating decimal
Considering the situation described, the scientist's null and alternative hypothesis are described by:
Null hypothesis
; Alternative hypothesis
.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if there is no difference, that is, the difference of the means represented by
is of 0, hence:

At the alternative hypothesis, it is tested if there is a difference, hence:

More can be learned about an hypothesis test at brainly.com/question/26454209
math teacher said its associative
4.(14-3) + 12
4.11 + 12
44 + 12
56
-15 and -42 both add to -57 and multiply to 630