Answer: SAFE DEPOSITE BOX
Step-by-step explanation:
Answer:
-3(8+2)=-30
Step-by-step explanation:
-3(8+2)
(8+2)=10
-3×10=-30
Answer: a=b , greater than
Step-by-step explanation:
The volume of this container is 5990 feet³.
<h3>How to calculate the volume?</h3>
Volume of a cylinder = πr²h
π = 3.14
r = radius = 17.5/2 = 8.75
h = 24.5
The volume will be:
= πr²h
= 3.14 × 8.75² × 24.5
= 5990 ft³
Therefore, the volume of this container is 5990 feet³.
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Answer:
(47.3, 54.1)
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
That is z with a pvalue of
, so Z = 1.96.
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 50.7 - 3.4 = 47.3
The upper end of the interval is the sample mean added to M. So it is 50.7 + 3.4 = 54.1
The answer is (47.3, 54.1).