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kramer
3 years ago
12

How do I find circumerfence?

Mathematics
2 answers:
AleksAgata [21]3 years ago
4 0

Answer:To find the circumference of a circle, multiply the circle's diameter by pi (3.14).

Step-by-step explanation:

Elina [12.6K]3 years ago
3 0

Answer:

The formula for circumference is C= pi x d. The diameter is two times the radius (d= 2r or r= d/2). The value of pi is approximately 3.14.

Step-by-step explanation:

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BlackZzzverrR [31]

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<h3>   517</h3><h3>Hope this helps</h3>
6 0
3 years ago
The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain riv
kari74 [83]
The river flows at 2 miles per hour. This is the speed of the current, or the speed at which the water itself is moving.

The mass of the particles moving in river is proportional to the sixth power of 2, or 2^6 = 64 miles per hour. So, if x is the mass of the particle, then the speed is modeled by an inverse relationship x * 2^6 = k, for some constant k. 

For particles that are 15 times the usual mass, the speed of the river itself must increase for the particles to travel at the same speed as before. The mass of the particles is still proportional to the sixth power of the speed of the river, but the speed of the river can no longer be 2 miles per hour. It is some speed y, which we are solving for.

So, the key here is proportional. We can set up two proportions and cross multiply.

\dfrac{x}{2^6} =  \dfrac{15x}{y^6}  \\ (x)(y^6)=(2^6)(15x)

Cancelling our x's (because we don't need to solve for them), we have

y^6 = 15(2^6) = 15(64)=960

To solve for y, we must take the sixth root of both sides, or raise both sides to the one-sixth power.

\sqrt[6]{y^6} =  \sqrt[6]{960}

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6 0
3 years ago
Which is a solution of the system of equations shown?
taurus [48]

Answer:

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Step-by-step explanation:

The solutions are the two points of intersection of the graphs:

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5 0
3 years ago
I need help with this pleaseee!!
soldi70 [24.7K]
A. No
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3 0
2 years ago
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D would be the answer
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3 years ago
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