Step-by-step explanation:
HERE,
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we know that,
sum of consecutive angle of a parallelogram =180
so,
According to the question,
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Answer and workings in the attachment below.
Answer:

Step-by-step explanation:
Everything is distributed evenly on both ends.
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Answer:
The difference of the two means is not significant, so the null hypothesis must be rejected.
Answer:
x= 8
Step-by-step explanation:
60/48=1.25
15/1.25= 12
12-4=8