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pickupchik [31]
3 years ago
9

What is the radius of a circle in which a 30° arc is 2 inches long?

Mathematics
2 answers:
marysya [2.9K]3 years ago
5 0
It would be 1 inch and 15 degree arc due to the act that the radius is half.
Elza [17]3 years ago
4 0
<span>a 30 deg arc is 1/12 of a circle since there are 360 deg in a circle

Hope i helped :)

</span>
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ozzi
The answer is A) √3
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-(1/tan(5π/6))
tan(5π/6)=-√3/3
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-(1/-√3/3)
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4 0
3 years ago
Read 2 more answers
gabrielle has $0.55 in dimes and nickels. She has 6 coins altogether. how many coins of each kind does she have?
elena-s [515]

the answer is 5 dimes and 1 nickel.

hope this helps <3

3 0
3 years ago
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Help plz! loads of points!
babunello [35]

I think it would be ''(A) 5 cm on the map represents 50m in chicago''

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but i know that its a for a fact

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3 0
3 years ago
Molly had a $12 gift card to download music. She bought 8 songs that each cost the same amount. Write a variable equation, then
inn [45]

Answer:

1.Equation ----- 8x=12

2. x=1.5

3. cost of a single song is $1.5

4.$12 gift card will download 8 songs

Step-by-step explanation:

The amount of money the gift card holds is $12

Number of songs bought= 8 songs

Let the cost of a single song to be =$x

The cost of 8 songs will be =$x × 8=$ 8x

So the 8 songs will all cost $12

This means; $ 8x = $12

Equation------ 8x=12

Finding cost of a single song

8x=12------------------divide by 8 both sides

x=12/8------------------simplify

x=3/2 = $ 1.5

Checking for solution

if a single song costs $1.5 , who many songs can a gift card with $12 download?

Here we divide $12 by $1.5 = $12/$1.5= 8 songs------------correct number of songs as mentioned in the question.

7 0
3 years ago
The mean annual tuition and fees for a sample of 12 private colleges was 36,800 with a standard deviation of 5,000 . A dotplot s
Ilya [14]

Answer:

The value of the test statistic and degrees of freedom is 2.148 and 11 respectively.

Step-by-step explanation:

Consider the provided information.

The mean annual tuition and fees for a sample of 12 private colleges was 36,800 with a standard deviation of 5,000 .

Thus, n = 12, \bar x=36800 σ = 5000

degrees of freedom = n-1 = 12-1 = 11

H_0: \mu = 33700\ and\ H_a: \mu \neq 33700

Formula to find the value of z is: z=\frac{\bar x-\mu}{\frac{\sigma}{\sqrt{n}}}

Where \bar x is mean of sample, μ is the mean of population, σ is the standard deviation of population and n is number of observations.

z=\frac{36800-33700}{\frac{5000}{\sqrt{12}}}

z=2.148

Hence, the value of the test statistic and degrees of freedom is 2.148 and 11 respectively.

6 0
3 years ago
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