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Kaylis [27]
3 years ago
7

Radius equal 13.2km. What is the answer??

Mathematics
1 answer:
IgorLugansk [536]3 years ago
4 0

Well the area is 13.2²π which = about 547.11 km² if that's what you're asking

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It costs $19.50 for postage and $5 for insurance to send a one-pound box by Express Mail.
Nadya [2.5K]
294 dollars

Okay so you would take 19.50 and add the 5 dollar insurance giving you 24.50. Then you’d take the 24.50 and multiply it by 12 giving you 294 dollars

Really hope I got that right
6 0
3 years ago
Sharon buys 14 folders for $0.75 each.How much change will she recive if she pays with 15 dollars?
Mashutka [201]
14x0.75=10.5
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3 0
3 years ago
Read 2 more answers
Mark and Don are planning to sell each other their marble collections at a garage sale. If Don has 1 more than 3 times the numbe
Volgvan

Answer: Mark has 28 marbles while Don has 85 marbles.

Step-by-step explanation:

Let x represent the number of marbles that Mark has.

Let y represent the number of marbles that Don has.

If Don has 1 more than 3 times the number of marbles Mark has, it means that

y = 3x + 1

The total number of marbles is 113. It means that

x + y = 113- - - - - - - - - - - - 1

Substituting y = 3x + 1 into equation 1, it becomes

x + 3x + 1 = 113

4x + 1 = 113

4x = 113 - 1 = 112

x = 112/4

x = 28

y = 3x + 1 = 3 × 28 + 1

y = 85

4 0
3 years ago
The center of a circle is at the origin. An endpoint of a diameter of the circle is at (-3, -4). How long is the diameter of the
Paladinen [302]

Answer:

25

Step-by-step explanation:

I believe

-3^2 + -4^2

9+16=25

7 0
3 years ago
Which choice represents the expression below as a single exponential
Lostsunrise [7]

Answer:

D

Step-by-step explanation:

When multiplying numbers with the same base but different exponents, add the exponents together.

4 0
2 years ago
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