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sleet_krkn [62]
3 years ago
11

A circle has radius of 5cm and a circumference of 31.4. if the radius is doubled, what is the new circumference, in centimeters

Mathematics
1 answer:
pychu [463]3 years ago
7 0
Radius doubled = 10
 Diameter = 20
Circumference = 3.14×20
= 62.8 cm

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Andy spent $55 in all to purchase 20 two-dollar and five-dollar toys. How many two-
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2 years ago
There are about 10^24 stars in the universe. Each galaxy has approximately the same number of stars as the Milky Way Galaxy. Abo
maks197457 [2]

Answer:

10^{13} galaxies.

Step-by-step explanation:

There are about 10^{24} stars in the universe.

The Milky Way galaxy10 * 10^{10} stars.

All we need to do to find the number of galaxies is to divide the total number of stars in the universe by the number of stars in the Milky Way:

Number of galaxies = (Number of stars in the universe) / (Number of stars in the Milky Way)

Number of galaxies = \frac{10^{24}}{10 * 10^{10}}

N = \frac{10^{24}}{10^{11}}

N = 10^{24 - 11} = 10^{13}

The number of galaxies in the universe is approximately 10^{13}.

7 0
3 years ago
I don't know how to do three and four
xenn [34]
Angle 3 is also 104: and angle 5 and 2 are 76: and angle 6 is 104: 3 and 8 are 104: and 7 and are 76

angle 1 and 6 are verticle angles 
angles 7 and 8 are suplimentary
angles 4 and 5 are alternate exterior angles
andgle 2 and 4 are im not sure
5 0
3 years ago
Read 2 more answers
Julius bought F boxes of 24 plastic forks. He already had 39 plastic forks. Now, he has 135 plastic forks. How many boxes of pla
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Answer:

D

Step-by-step explanation:

boxes are the f. the amount in each is 24. theses will be mulitplied. then you want to add what he already had. that's the +39

8 0
3 years ago
Please help me this is urgent.!
nata0808 [166]
V= 3.14• 5^2•4
V= 3.14 •25•4
V= 78.5•4
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Sorry I couldn’t give a more detailed explanation but here is the original equation for volume of a cylinder:

V=πr2h

Hope this helps comment below for more questions :)
3 0
3 years ago
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