Answer:
-7 + 4 = -3
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Answer:
There is no solution
Step-by-step explanation:

subrtact 1/4 X from each side
-13=13/4 is not true, so no solution
Answer:
Step-by-step explanation:
x/10=7
x=70
I think the answer is a I'm not sure
Answer: Option C. [0.95, 1.59].
Step-by-step explanation:
We know that the mean is:
M = 1.27
and the margin of error is:
e = 0.32
This means that the actual value can be at a maximum distance of 0.32 from the mean.
then the interval will be:
[M - e, M + e].= [1.27 - 0.32, 1.27 + 0.32].= [0.95, 1.59].
The correct option is C.