All categories

3 years ago

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

You might be interested in

Andy spent $55 in all to purchase 20 two-dollar and five-dollar toys. How many two-

Masja [62]

I’m not sure but if I’m right Jen it will be 1 two dollar toy and 5 five dollar toy

7 0

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 galaxy $10 * 10^{10}$ 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

mr_godi [17]

Answer:

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
V=314

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

Read 2 more answers