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4 years ago

Will mark BRAINLIEST to correct answer! Please help, this has to be correct. Thanks!

Mathematics

2 answers:

disa [49]4 years ago

7 0

The water pipe is a cylinder. The question asks for the circular cross section of the pipe. We know the diameter is 20 cm. The radius is half of the diameter, so it is 10 cm. The area of the circular cross section is $A= \pi r^2$ We plug in r in our equation to get
$A=\pi (10)^2=100 \pi$
100 $\pi$ cm^2 is our answer.

pogonyaev4 years ago

4 0

The answer would be 314.16 square cm
Hope this helps! :)

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3 years ago

The side length, s, of a cube is 4x2 3. if v = s3, what is the volume of the cube? 64x6 144x4 108x2 27 64x6 48x4 12x2 1 4x6 36x4

sdas [7]

The volume of the cube given the dimensions of the side length is $64x^{6} + 144x^{4} + 108x^{2} + 27$

<h3>What is the volume of the cube?</h3>

A cube is a 3-dimensional object that has six faces, twelve edges and eight vertices.

Volume of a cube = a³

Where a = length of a side

(4x² + 3) × (4x² + 3) = 16x^4 + 24x² + 9

(16x^4 + 24x² + 9) × (4x² + 3) = $64x^{6} + 144x^{4} + 108x^{2} + 27$

To learn more about the volume of a cube, please check: brainly.com/question/26406747

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2 years ago

Ben is paid £12.40 per hour.

andreev551 [17]

Answer:

£156.24

Step-by-step explanation:

Ben worked for 12 hours.

Total = Normal working hours + overtime working hours

12 hours = 9 hours + 3 hours

Ben is paid £12.40 per hour(normal working hours)

he is paid overtime for the additional hours at a rate of 1.2 times his normal rate of pay.

Amount earned Overtime = 1.2 × £12.40

= £14.88

Total amount earned for 12 hours of work = 9(£12.40) + 3(£14.88)

= £111.60 + £44.64

= £156.24

Total amount earned for 12 hours of work = £156.24

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4 years ago

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