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OLga [1]
4 years ago
11

A cylindrical cardboard tube with a diameter of 8 centimeters and a height of 20 centimeters is used to package a gift. What is

the approximate volume of the tube? Round to the nearest whole cubic centimeter.
Mathematics
1 answer:
Nutka1998 [239]4 years ago
5 0

Answer:

1005

Step-by-step explanation:

V=πr^2h

=3.14*4^2*20

=1004.8

=1005

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Which amount is larger and by how much?
BlackZzzverrR [31]
600 increased by 20%  = 600 * 1.2 = 720

720 decreased by 20%  = 720 * 0.8  =  576

600 is larger by 24.
3 0
4 years ago
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someone please help :( a sample of the amount of rent paid for one-bedroom apartments of similar size near the University of Ore
Volgvan

Answer:

Oregon:

Median: 467.5

Mean: 451.33

Standard Deviation: 113.6

Washington:

median: 380

Mean: 396.6

Standard deviation: 56.3

Step-by-step explanation:

To calculate the median, we need to organize the price and select the value that is in the middle position.

To calculate the mean, we need to sum all the values and divide them by the number of values

To calculate the standard deviation, we need to square the distances between every price and the mean, sum it all and divide them by the number of values less 1 and finally calculate the square root.

So, for Oregon, the organized values are:

$295, $345, $460, $475, $538, $595

The median is a value between $460 and $475. it is calculated as:

\frac{460+475}{2}=467.5

The mean is:

\frac{295+475+345+595+538+460}{6}=451.33

The standard deviation is:

\sqrt{\frac{(295-451.3)^2+(475-451.3)^2+(345-451.3)^2+(595-451.3)^2+(538-451.3)^2+(460-451.3)^2}{6-1}}=113.6

At the same way, we can calculate the median, mean, and standard deviation for Washington and get:

median: 380

Mean: 396.6

Standard deviation: 56.3

3 0
3 years ago
(7x4 + 2x3 - 3) – (4x2 - 9x + 2)
abruzzese [7]

Answer:

7x4+2x3-4x2-5

Step-by-step explanation:

We will start solving this question by opening the bracket first

So let's solve

(7x4+2x3-3)-(4x2-9x+2)

7x4+2x3-3-4x2+9x-2

Collect like terms

7x4+2x3-4x2-3-2

7x4+2x3-4x2-5

So the final answer is 7x4+2x3-4x2-5

4 0
3 years ago
> Which expression is equivalent to 1/3b - 7
LiRa [457]

Answer:

option 2

Step-by-step explanation:

1/3(b-21)= 1/3b - 7

1/3 of -21 is -7

7 0
3 years ago
Read 2 more answers
Charles owns a catering business. The amount his 10 most recent clients spent is shown in the histogram below. Why is the graph
Alexxandr [17]
<span>The scales are different on the x-axis and the y-axis.
</span>Therefore, the correct answer choice is:
A. The x-axis scale shows the data is more clustered than it actually is.

5 0
3 years ago
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