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3 years ago

The density of copper is 9.86g\cm³ work out the solid copper cuboid in kg

Mathematics

1 answer:

EleoNora [17]3 years ago

3 0

Answer:

Step-by-step explanation:

Density of copper = 9.86 g / cm^3 = 9860 kg / m^3

= 9.86 x 1 / 1000 kg / cm^3 = 9.86 / 1000 Kg / cm^3

= 0.00986 kg / cm^3

= 9.86 x 1 / 1000 kg (1 / 100 m)^3

= 9.86 x 1000000 / 1000 kg / cm^3

Mass "m" = 9860 kg / m^3

thus the mass of copper in solid form is m = 9860 kg / m^3

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What is the slope of 7; (4 -30)

swat32

Answer:

Can you restate the question, it is hard to solve with typos.

If you would like, it would also help to attach an image or picture of the question.

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3 years ago

88, 92, 76, 42, 88, 90, 100, 110, 115, 5, 88, 92, 95

salantis [7]

Answer:

Mean = 83.15

Median = 90

Mode = 88

Range = 110

Outlier = 5

Step-by-step explanation:

Mean - (88+92+76+42+88+90+100+110+115+5+88+92+95)/2 = 83.15

Median - 5, 42, 76, 88, 88, 88, 90, 92, 92, 95, 100, 110, 115 = 90

Mode - 88, 92, 76, 42, 88, 90, 100, 110, 115, 5, 88, 92, 95 = 88

Range - 115 - 5 = 110.

Outlier - 88, 92, 76, 42, 88, 90, 100, 110, 115, 5, 88, 92, 95 = 5

hope it helps :)

please mark brainliest!!! (took a lot effort!)

8 0

3 years ago

Read 2 more answers

Find the cube roots of 125(cos 288° + i sin 288°)

kow [346]

Let r(cos O + i sin O) be a cube root of 125(cos 288 + i sin 288)
then
r^3(cos O + i sin O)^3 = 125(cos 288 + i sin 28)

so r^3 = 125 and cos 3O + i sin 3O = cos 288 + i sin 288

so r = 5 and 3O = 288 + 360p and O = 96 + 120p

so one cube root is 5 (cos 96 + i sin 96)

Im a little rusty at this stuff Its been a long time.

Im not sure of the other 2 roots

sorry cant help you any more

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3 years ago

Read 2 more answers

What is the value of X?

podryga [215]

Hey there! :D

36/6= 6

From this scale, we know that x has to be 42/6. Since the bigger triangle has a scale of 6 with the similar smaller triangle.

42/6=7

So, x=7

I hope this helps!
~kaikers

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3 years ago

The circumference of a circular garden is 141.3 feet. What is the radius of the garden? Use 3.14 for π and do not round your ans

Olin [163]

Answer:

Step-by-step explanation:

The formula for circumference is 2(3.14)r

So, we divide 141.3 by 6.28 and get 22.5

The radius is 22.5 feet.

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2 years ago