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Maksim231197 [3]
3 years ago
5

A circle with circumference 20 has an arc with a 72 degree central angle. What is the length of the arc?

Mathematics
1 answer:
drek231 [11]3 years ago
5 0

Answer:

4

Step-by-step explanation:

circumference = 2πr

or, 20 = 2π r

or, π r = 10

or, r= 10/π

72 ° = 2π/5

length of arc = r∅ = 10/π × 2π/5

= 4

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3 years ago
pls help me with this if you know it also to explain it thanks Solve the equation -21 + 70n = 77 for n.
gogolik [260]

Answer:

n = 1 2/5

Step-by-step explanation:

-21 + 70n = 77

Add 21 to each side

-21+21 + 70n = 77 +21

70n = 98

Divide each side by 70

70n/70 = 98/70

n =98/70

n = 70/70 +28/70

n = 1 + 2/5

n = 1 2/5

6 0
4 years ago
You have decided to purchase a car for $25,625. The credit union requires a 10% down payment and will finance the balance with a
mash [69]

9514 1404 393

Answer:

  total purchase price: $27,722.01

Step-by-step explanation:

The price of the car plus tax is ...

  $25,625 × (1 +7.5%) = $27,546.88

Adding license and title charges brings the total to ...

  $27,546.88 +175.13 = $27,722.01 . . . total purchase price

_____

<em>Additional comment</em>

10% of that, or $2,772.20, will be the required down payment, leaving a balance due of $24,949.81. The payments on a 36-month loan at 9% will be $793.40, for a total loan cost of $28,562.30. Then the full cost of the car, including financing, is $31,334.50. The cost of the financing is $3,612.49.

3 0
3 years ago
Solve for x.<br> 1/4+1/2+x= -3/4
o-na [289]

Answer:Negative negative one and 2/3

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6 0
3 years ago
Which inequality represents the situation described below
ddd [48]
Show the picture or something
3 0
3 years ago
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