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pantera1 [17]
4 years ago
14

HELP PLEASE BECAUSE KHAN ACADEMY SUCKS!

Mathematics
2 answers:
Anastaziya [24]4 years ago
7 0
I think it’s 10 cm
Don’t know if I’m right tho
Andru [333]4 years ago
4 0
volume Large Can
r = 8 cm
pi = 3.14
h = 20 cm
V = pi r^2 h
V = 3.14*8^2 * 20
V = 4019 cm^3

Volume left over.
He has 1/4 of a can of  paint left.
V1 = 1/4 * 4019
V1 = 1004.8

Calculate height.
V = 1004.8
pi = 3.14
r = 5 cm^2
h = ??

h = V/(pi r^2)
h = 1004.8 / (3.14 * 5^2)
h = 1004.8 / 78.5
h = 12.8 cm

There are other ways of doing this, but this is the clearest.
You might be interested in
How do we find the range
Volgvan
Subtract the biggest number to the lowest number.
Example: 12,15,16,18
18-12 =6
18 is the biggest number for this data
12 is the lowest number for this data
Just subtract the buggest no. To the lowest no.

Hope it help
4 0
3 years ago
Urgent please help! will give brainliest
marishachu [46]

Answer:

The answer is A

Step-by-step explanation:

(-2,-3) (3,-4) (0,-1) (-7,3)

inverse means the opposite signs

(2,3) (-3,4) (0,1) (7,-3)

3 0
3 years ago
Which fraction is equivalent to 2/5?  <br> A. 4/10 <br> B. 2/10   <br> C. 1/2   <br> D. 4/6
Lelechka [254]
Hey there James!

So, just remember, 2/5 is almost half of 1.

When it is almost half of 1, this means that it would have to be 2.5/5

This would mean that 4/10 would be your answer, because it is almost half of 1 also.

Hope this helps.
6 0
4 years ago
Someone help no websites or links plz if right will mark brainiest :)
natima [27]

Answer:

Cos Z= 4/5

Step-by-step explanation:

Hope it helps you!

5 0
3 years ago
Assume the population has a distribution with a mean of 110 and a standard deviation of 8. For a random sample of size 40, find
VARVARA [1.3K]

Answer:

109.33

Step-by-step explanation:

given that the population has a distribution with a mean of 110 and a standard deviation of 8

Sample size n = 40

Std error of sample mean = std dev/square root of sample size

= \frac{8}{\sqrt{40} } \\=1.265

From std normal distribution table we find that 30th percentile for Z is

-0.5244

Corresponding x score =110-0.5244*1.265=109.33663

30th percentile = 109.33663

=109.33

8 0
4 years ago
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