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worty [1.4K]
3 years ago
12

Calculate the area of the shaded region

Mathematics
1 answer:
velikii [3]3 years ago
4 0

Answer:

48π or 150.72

Step-by-step explanation:

The radius of the big circle is 8.

We can use that to find the area of the big circle.

Area is πr^2

π(8)^2

64π

Now, we can find the area of the small circle.

The diameter of that is 8, meaning the radius is 4.

πr^2

π(4)^2

16π

Now we subtract the area of the small circle from the area of the big circle to get the area of the shaded region.

64π-16π=48π

As a decimal: 48*3.14=150.72

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Answer:

A

Step-by-step explanation:

One and three hundred and four thousand

1+                             3/100+          4/1000

5 0
3 years ago
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Locate the interval μ ± 2σ on the x-axis of a probability histogram. You are given that the mean is 2.84 and the standard deviat
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Answer:

P(0.02

And we can find this probability with the following difference:

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And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-2

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

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Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

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Where \mu=2.84 and \sigma=1.41

We are interested on this probability

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And the best way to solve this problem is using the normal standard distribution and the z score given by:

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If we apply this formula to our probability we got this:

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7 0
3 years ago
0f 30 students 1/3 play sports. of those who play sport, 2/5 play soccer. how many students play soccer​
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Answer:

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Step-by-step explanation:

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6 0
3 years ago
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musickatia [10]

It is given in the question that

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Substituting the values of two functions, we will get

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= \frac{8x^3(2x^2 -6x-1)}{8x^2} = x(2x^2 -6x-1)

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