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egoroff_w [7]
3 years ago
13

I need to know the circumference of circle C.

Mathematics
1 answer:
Anna71 [15]3 years ago
6 0

Answer:

Step-by-step explanation:

\theta=30^\circ=\frac{30}{180} \pi =\frac{\pi }{6}\\l=r \theta\\JK=2 \times \frac{\pi }{6} =\frac{\pi }{3} \approx 1.047circumference=2\pi r=2 \times \pi  \times 2=4 \pi \approx 12.57 ~ft

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Step-by-step explanation:
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3 years ago
What is the equation of the line that passes through the point (-4,4) and has a<br> slope of -3
Arte-miy333 [17]

Answer: y-4=-3(x+4) or y=-3x-8

Step-by-step explanation:

To find the equation of the line with a given point and slope, we can fill them into the point-slope formula. The point-slope formula is y-y₁=m(x-x₁).

y-4=-3(x-(-4))            [multiply]

y-4=-3(x+4)

Another equation could be slope-intercept form. It is y=mx+b.

y-4=-3(x+4)              [distribute]

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y=-3x-8

Now, we know that the equation is y=-3x-8 or y-4=-3(x+4).

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3 years ago
What is the distance from -2 to 1.5 on the number line
Inga [223]
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8 0
3 years ago
An electric sale gives a reading equal to the true weight plus a random error that isnormally distributed with mean 0 and standa
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Answer:

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b) 99% confidence interval estimate of the true weight is (2.944, 3.356)

Step-by-step explanation:

Confidence Interval can be calculated using M±ME where

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And margin of error (ME) can be calculated using the formula

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Using the numbers 95% confidence interval estimate of the true weight is:

3.150±\frac{2.776*0.1}{\sqrt{5} }≈3.150±0.124

And 99% confidence interval estimate of the true weight is:

3.150±\frac{4.604*0.1}{\sqrt{5} }≈3.150±0.206

3 0
3 years ago
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Soloha48 [4]

Answer:

The second one because q goes with y r goes with z and s goes with x

Step-by-step explanation:

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