Identify the cross section that results from slicing the three-dimensional figure with a plane that is parallel to its base
2 answers:
You might be interested in
The confidence interval for the mean usage of water is (18.7,20.5).
Given population standard deviation of 2.4, mean of 19.5 gallons per day and confidence interval of 98%.
We have to find the confidence interval for the mean usage of water.
To find out the confidence interval we have to first find margin of error.
μ=19.5
σ=2.4
α=0.98
α/2=0.49
We have to find the z value for the p value 0.49 which is z=2.33
Margin of error=z*μ/
=2.33*19.5/
=0.82
lower level=mean -m
=19.5-0.82
=18.68
after rounding upto 1 decimal
=18.7
upper mean = mean+m
=19.5+0.82
=20.52
Hence the confidence interval for the usage of water is (18.7,20.52).
Learn more about margin of error at brainly.com/question/10218601
#SPJ4
Answer:
B
Step-by-step explanation:
start by multiplying the 6a to each number in the other set of parenthesis.
after doing so, you end up with the numbers: and
now multiply the one to each number in the other parenthesis. you get this:
and
.
then set it all next to each other: +
then combine like terms (-54a and 2a) you get:
so that is how you get B for the answer