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dangina [55]
3 years ago
6

The circumference of a circle is 7π in. Find its radius, in inches.

Mathematics
2 answers:
natka813 [3]3 years ago
7 0

Answer:

\bf \huge \: 11 \: inches.

Step-by-step explanation:

<h2>Given :</h2>

  • The circumference of a circle is 7π in.

<h2>to find :</h2>

  • Find its radius, in inches.

<h2>formula used :</h2>

  • r = c/2

where,

  • r = radius
  • c = circumference

<h2>explanation :</h2>

⟼ r = c/2

⟼ r = 7×22÷7/2 in

⟼ r = 22/2 in

⟼ r = 11 in.

  • Hence, radius is <u>11 inches.</u>
mezya [45]3 years ago
4 0

Answer:

3.5 in

Step-by-step explanation:

Circumference = 2π(radius)

7π = 2π (radius)

7π/2π = radius

Pi in numerator and denominator cancel each other.

7/2  = radius

3.2 in = radius

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Answer:

RR   RG   RO   RB

GG   GR   GO   GB

OO   OR   OG   OB

BB   BR   BG   BO

There are 16 possible outcomes.

Step-by-step explanation:

For this question, we combine the possibilities together.

R = red  G = green  O = orange  B = blue

There are 16 possible outcomes.

You can also find the total number of possible outcomes by using the formula for permutations.  n is the total number of choices.  r is the number you are examining.

\frac{n!}{(n-r)!}

\frac{4!}{(4-2)!} =12

This number doesn't include the outcome of having the same color twice.  There are four colors meaning that their four outcomes in which the same color is spun twice.

12 + 4 = 16

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3 years ago
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Answer:

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Step-by-step explanation:

Hope this helped

8 0
3 years ago
you invested 1,000 in an account with interest rate at 2% compounded continuously. how long until 1400 is in your account?
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Step-by-step explanation:

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Kendra earns $70 per week mowing lawns. She saves 60% of the money she earns each week. How many weeks will it take Kendra to sa
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Answer:

5 weeks

Step-by-step explanation:

Let's find how much money she saves a week by multiplying the decimal form of 60% and $70.

To get the decimal form of a percent you have to move the decimal to the left twice, like this: 60 ---> .60

Now that we have the decimal form of the percent we can multiply it by the 70 to find how much she saves a week:

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Therefore, Kendra saves $42 each week.

To find how many weeks it will take Kendra to buy the game system you divide $210 by the $42. Like this:

(210)/(42) = 5

All in all, it will take Kendra 5 weeks to save enough money to buy a game system that costs $210.

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