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m_a_m_a [10]
3 years ago
11

What is the formula for the circumference of a circle using the radius?

Mathematics
1 answer:
marta [7]3 years ago
4 0
We know that:
C=πd Were π(pi)=3,14... and d=diameter
We know that the radious is 2d, so we aply this to the formula and we get that:
C=2πr
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HELP NEED ANSWER FOR HOMEWORK
Aleks04 [339]

Answer:

596.032

Step-by-step explanation:

The answer is typed wrong.

Using a calculator: 6.4 x 6.7 x 13.9 = 596.032

Tell your teacher that answer is not there. It's typed wrong.

Hoped this helped! :)

5 0
3 years ago
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Is 2 greater or less than or equal to -5?
Marina CMI [18]
2 is greater then -5.


2 is a positive number unlike -5 it is a negative which is less then 2.
5 0
3 years ago
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A metric unit of length that is equal to one thousandth of a meter is.......
12345 [234]
The metric unit of length that is equal to one thousandth of a meter is a millimeter. 1 meter = 1000 millimeter

hope this helps
3 0
3 years ago
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A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns
jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered  

 Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = \frac{d}{15-x}

time downstream = \frac{d}{15+x}

the ferry trip upstream takes twice as long as its return trip downstream

\frac{d}{15-x}= \frac{2d}{15+x}

divide both sides by d

\frac{1}{15-x}= \frac{2}{15+x}

cross multiply

15+x= 2(15-x)

15+x= 30-2x

Add 2x on both sideds

15+3x= 30

subtract 15 from both sides and divide by 3

3x=15

x=5

Speed of river's current = 5 mph

8 0
3 years ago
7x to the power of 2 is a what is it<br>a) monomial<br>b) binomial<br>c) Trinomial​
Sedaia [141]
You can use the prefixes to figure this out:
Mono: one
Bi: two
Tri: three

So, because there is only one term, it is a monomial.
4 0
3 years ago
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