A) Q + N = 63
B) .25Q + .05N = 8.35
Multiplying Equation B by -4
B) -Q -.2N = -33.40 then adding it to A)
A) Q + N = 63
.8 N = 29.60
N = 37
Q = 63 - 37 = 26
If the length of a confidence interval is 3 for inference concerning a mean, the required sample size is
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more variables and numbers.
σ = standard deviation, n = sample size, the margin of error (E) is given by:
If the length of a confidence interval is 3 for inference concerning a mean, the required sample size is
Find out more on equation at: brainly.com/question/2972832
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Answer:
this answer requires that you do a little solving to find all the dimensions we need for the volume.
We know that H (height) = 2m
Diameter = 5 x height, so
Diameter = 5 x 2m = 10m
If you have the formula for finding the volume of a cylinder, it is basically the area of the circular base x cylinder height. You may know already that the area of a circle is (pi) x radius2
So this will be 2 (the height) x (pi) x r2
As we just figured out, the DIAMETER is 10, so the radius is half the diameter = 5.
This brings our volume to 2 x (pi) x 52
= 2 x (pi) x 25
2x25 = 50, so we have 50 x (pi).
Pi = 3.14
50 x 3.14 = 157
And don't forget your units = 157 m3
Answer:
6%
Step-by-step explanation:I
I'm going to assume that the interest is compoudning anually and there was only one payment
we know that
FV=PV(1+i)^N
which means taht
25560=18000(1+i)^6
Solve for i and get .06 or 6%