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shepuryov [24]
2 years ago
13

In a circle with a radius of 12.6 ft, an arc is intercepted by a central angle of 2π/7 radians.

Mathematics
2 answers:
Hitman42 [59]2 years ago
6 0
11.30
just convert it :)
NeX [460]2 years ago
3 0
Arc Length = Ф/2π * 2πr

l = 2π/14π * 2 * 3.14 * 12.6

l = 1/7 * 79.128

l = 11.30

In short, Your Answer would be: 11.30 Feet

Hope this helps!
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how much would $100 invested at 8% interest compounded annually be worth after 15 years? Round your answer to the nearest cent.
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To calculate problems abound about compounding interest use the equation <span>A = P (1 + r/n)^<span>(nt), where A is the future price, P is the principal amount, r is the interest rate, n is the number of times the interest is compounded per year and t for the total years. To solve, A = 100 (1 + 0.08/1)^(1 x 15) = 317.22.</span></span>
5 0
3 years ago
Read 2 more answers
Suppose that the mean time that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes. The standar
Maurinko [17]

Answer:

94.2 -0.994*3.1 = 91.1186

94.2 +0.994*3.1 = 97.2814

And the 68% confidence interval is given by (91.1186, 97.2814)

Step-by-step explanation:

For this case we know that mean time that visitors stay at a museum is given by:

\bar X = 94.2

The standard deviation is given by:

s= 15.5

And the standard error is given by:

SE = \frac{s}{\sqrt{n}} =3.1

And we want to interval captures 68% of the means for random samples of 25 scores and for this case the critical value can be founded like this using the normal standard distribution or excel:

z_{\alpha/2}= \pm 0.994

We can find the interval like this:

\bar X \pm ME

And replacing we got:

94.2 -0.994*3.1 = 91.1186

94.2 +0.994*3.1 = 97.2814

And the 68% confidence interval is given by (91.1186, 97.2814)

7 0
3 years ago
F(x) = 3x + 2; g(x) = x2 + 4; h(x) = 5x + 1<br><br> Find h(g(2))
tatuchka [14]

Answer:

Step-by-step explanation:

h(g(2)) = h( 2²)  = h(4) ; because g(x=2) = 2²

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6 0
2 years ago
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Vinil7 [7]
154/22 sales = $7/sale 
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7 0
3 years ago
Read 2 more answers
I need an explanation on how to work this out
rjkz [21]

Answer:

make 360×each number given/15 students to start drawing

360×7/15=168°

360×5/15=120°

360×2/15=48°

360×1/15=24°

now draw each one from the radius give to the clockwise

if you don't know what's clockwise direction, see it from your house or tell anybody in your home to tell you where is clockwise

after you finish drawing, label each section by writing the names on the correct sections ( you can write in or out of the circle)

6 0
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