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r-ruslan [8.4K]
4 years ago
8

If the diameter of a circle is 5, what is its circumference?

Mathematics
1 answer:
DanielleElmas [232]4 years ago
4 0

Multiply the diameter by PI which is 3.14 so that means the circumference would be 15.7.

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A chemist mixes 4 liters of one acid solution with 10 liters of a 40% solution, resulting in a 30% acid solution. The table show
kondaur [170]

Given that amount of first acid solution = 4 liters

Let concentration of the first acid solution = x

then effective amount of first solution = 4x


Given that amount of second  acid solution = 10 liters

Givn that concentration of the second acid solution = 40% = 0.4

then effective amount of second solution = 0.4(10)


Then amount of resulting acid solution = (4+10) liters

Givn that concentration of the resulting acid solution = 30% = 0.3

then effective amount of resulting solution = 0.3(4+10)


Combining all those results gives equation

4x +0.4(10) = 0.3(4+10)

4x +4 = 0.3(14)

4x +4 = 4.2

4x = 0.2

x=0.05


Hence final answer is 0.05 or you can say 5%.



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3 years ago
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There would be 57,500 shares left to sell
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hich three lengths could be the lengths of the sides of a triangle? A) 11 cm, 11 cm, 24 cm B) 18 cm, 12 cm, 9 cm C) 9 cm, 19 cm,
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It’s a) because the triangle has 2 equal sides and one not
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How do i solve these?
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What is the weight of a ring tailed lemur that has a mass of 10 kg? Use w = mg (g = -9.8 m/s^2)
fiasKO [112]

Answer:

None of these

Step-by-step explanation:

Normally, we consider "weight" to be the force due to gravity that an object exerts in the downward direction. It has a positive value equal to the magnitude of "mg". In this instance, it would be ...

... |(10 kg)·(-9.8 N/kg)| = |-98 N| = 98 N

___

However, you're specifically told to use ...

... w = mg

... w = (10 kg)(-9.8 m/s²) = -98 N

This selection is not among those offered.

8 0
3 years ago
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