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MArishka [77]
2 years ago
6

A cylindrical water tank near the town library is 20 meters high and has a circumference of 39 meters. What is the approximate v

olume, to the nearest whole number, of the water tank? Use 3.14 as an approximation for π and round to the nearest whole number.
Mathematics
1 answer:
nadezda [96]2 years ago
3 0

Step-by-step explanation:

height of the cylindrical tank = 20m

circumference of the tank = 39m

volumn of tank =  

perimetre formula = 2πrh

= 2 x 3.14 x r x 20 = 39

= 188.4r = 39

r = 188.4/39

r = 4.83

volumn =  πr^/2

h

= 3.14 x 4.83^2 x 2 x 20

= 1465.05

volumn of tank = 1465.05

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garri49 [273]

Answer:

a) bell-shaped.              

b) mean, median, and mode all equivalent.      

d) symmetric around the mean.        

g) most of the data fall within 3 standard deviations from the mean.

Step-by-step explanation:

We have to describe a normal distribution.

a. bell-shaped.

This is true a normal distribution is a bell shaped distribution.

b. mean, median, and mode all equivalent.

This is true for a normal distribution.

Mean = Mode = Median

c. Bimodal

The is not true about the normal distribution. A normal distribution is unimodal and the mode is equal to the mean of the distribution.

d. symmetric around the mean.

This is true. The normal distribution is centered around the mean

e. skewed to the right.

This is not a property of normal distribution.

f. models discrete random variables.

Normal distribution is a continuous distribution.

g. most of the data fall within 3 standard deviations from the mean.

This is true. According to Empirical rule, almost all the data lies within three standard deviation of mean.

h. uniform-shaped

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4 0
3 years ago
(-3)+(-5)+9 i will give brainllest
Mila [183]
(-3) + (-5) + 9

(-3) + (-5) = -8

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6 0
2 years ago
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Alenkinab [10]

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5 0
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antiseptic1488 [7]

The question is asking what will we get if we add 1+1.

Let us use an example to understand this.

Example:

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Applying this to our question adding 1 and 1 gives us 2.

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