Mathematics : asked on shortyyashaun

09.07.2020

A cylinder has a radius of 20 meters. It’s volume is 13,816 cubic meters. What is the height of the cylinder

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24.06.2023, solved by verified expert

Bhaskar Singh Bora

Mathematics, Physics. Q&A Expert

23 753 answers

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H ≈ 10.994424 m ≈ 11 m

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Mathematics

A cylinder has a radius of 20 meters. It’s volume is 13,816 cubic meters. What is the height of the cylinder

Step-by-step answer

P Answered by PhD

H ≈ 10.994424 m ≈ 11 m

Step-by-step explanation:

$V=\pi R^2\cdot H\\\\V=13\,816\ m^3\\R=20\,m\\H=??\\\\13\,816=\pi\cdot20^2\cdot H\\\\13\,816=400\pi H\\\\13\,816\approx1256.637 H\\\\H\approx10.994424\,m$

Mathematics

You can buy jars of the same jam in 2 sizes large jar:440g for £1.54 small jar:340g for £1.26 By considering the price per gram, work out which jar is the best value for money. Working must be shown

Step-by-step answer

P Answered by PhD

Answer: 440 grams for 1.54 is the better value
Explanation:
Take the price and divide by the number of grams
1.54 / 440 =0.0035 per gram
1.26 / 340 =0.003705882 per gram
0.0035 per gram < 0.003705882 per gram

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Step-by-step answer

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The answer is in the image

The answer is in the image

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Step-by-step answer

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The answer is in the image

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Step-by-step answer

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The answer is in the image

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Step-by-step answer

P Answered by PhD

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

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Mathematics

The value of a collectible coin can be represented by the equation y = 2 x + 15, where x represents its age in years and y represents its total value in dollars. What is the value of the coin after 19 years? $2 $23 $38 $53

Step-by-step answer

P Answered by PhD

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

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Therefore, Value after 19 years=$53

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Step-by-step answer

P Answered by PhD

Salesperson will make 6% of 1800

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Step-by-step answer

P Answered by PhD

Speed=Distance/time

Here,

distance=15m

time=1sec

speed=15/1=15m/sec

Distance=Speed*time

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Step-by-step answer

P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

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Picture frame built till now= 6/(3/4)

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Therefore, till now 8 pieces have been made.

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