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1 year ago

The formula C =πr relates the radius r of a circle to its circumstance C. Solve the formula for R

2 answers:

3 0

To solve for $r$ , we are going to want to get it on one side of the equation by itself, or isolate it. To do this, we can divide both sides of our equation by π, as shown below:

$C = \pi r$

$\dfrac{C}{\pi} = \dfrac{\pi r}{\pi}$

$\boxed{\dfrac{C}{\pi} = r}$

We can see that r = C/pi.

Tatiana [17]1 year ago

3 0

$\pi r=C\ \ \ |:\pi\\\\\boxed{r=\dfrac{C}{\pi}}$

hmmm... Correct formula of circumference of a circle is

$C=2\pi r\ \ \ |:2\pi\\\\\boxed{r=\dfrac{C}{2\pi}}$

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1 year ago

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Automobile mechanics conduct diagnostic tests on 150 new cars of a particular make and model to determine the extent to which th

Aleks04 [339]

Answer:

99% Confidence interval: (0.185,0.375)

Step-by-step explanation:

We are given the following in the question:

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The 99% confidence interval for the true proportion of new cars with faulty catalytic converters is (0.185,0.375)

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A local PTA runs a fundraiser, selling lottery tickets for $5, offering 1 first prize of $100 and 5 second prizes worth $20 each

podryga [215]

100 tickets were sold.
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Answer:

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Given -

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Since area is constant

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