Answer: 35
Step-by-step explanation:
Given : Standard deviation :
Margin of error :
Significance level :
Critical value :
The formula we use to find the minimum sample size required :-
i.e.
Hence, the minimum sample size is needed to be 95% confident that the sample mean is within 1 pound of the true population mean =35
Answer:
C = 2√(Aπ).
Step-by-step explanation:
The area A = π r^2 where r = radius
and the circumference = 2 π r.
From the formula for the area r = √(A / π)
So the circumference is found by substituting in C = 2 π r for r:
C = 2 π √(A / π)
C = 2√(Aπ).
The area of a triangle formula is A = 0.5*b*h where b is the base and h is the height. To solve for b, we multiply both sides by 2 to get 2A = b*h and then we divide both sides by h to get b = 2A/h. Now plug in the given info to get...
b = 2*A/h
b = 2*36/6
B = 72/6
b = 12
so if the area is 36 and the height is 6, then the the base must be 12
Answer:
Step-by-step explanation:
You would put b at -3 (put a dot there)
Move with m by going up 1, and then to the right 4 (the next dot should be at --2, 4)
connect both points with a straight line