Answer:
6280 mm squared
Step-by-step explanation:
To find the area Of a cylender we multiply pi times r squared times the height, and we can put pi as 3.14
the radius is 10 mm, and the height is 20 mm.
pug it in.
3.14 times 10 squared times 20.
3.14 time 100 time 20
314 times 20
6280 mm squared
With some simple rearrangement, we can rewrite the numerator as
Then factorizing the difference of squares, 
, we end up with
Square root of 154m^2 = 12.5~
So adding 1.5 to 12.5 and subtracting 1.5 to 12.5 gives us 11 and 14
Your dimensions are 11x14
Brainliest?
Thanks!
To solve for proportion we make use of the z statistic.
The procedure is to solve for the value of the z score and then locate for the
proportion using the standard distribution tables. The formula for z score is:
z = (X – μ) / σ
where X is the sample value, μ is the mean value and σ is
the standard deviation
when X = 70
z1 = (70 – 100) / 15 = -2
Using the standard distribution tables, proportion is P1
= 0.0228
when X = 130
z2 = (130 – 100) /15 = 2
Using the standard distribution tables, proportion is P2
= 0.9772
Therefore the proportion between X of 70 and 130 is:
P (70<X<130) = P2 – P1
P (70<X<130) = 0.9772 - 0.0228
P (70<X<130) = 0.9544
Therefore 0.9544 or 95.44% of the test takers scored
between 70 and 130.
Answer:
16
Step-by-step explanation:
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