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IRINA_888 [86]
3 years ago
12

The formula for the circumference, C, of a circle with radius r is given.

Mathematics
1 answer:
kolezko [41]3 years ago
8 0
The formula for the circumference, C, of a circle with radius r is given.

C=2pi

Amanda made a circular toy hoop using a plastic tube. The circumference of the hoop is 125.6 inches. What is the radius of the hoop? Use 3.14 for pi.

The answer is
D.
40 inches
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What is the median for the following set of data? 2, 3, 6, 8, 9, 10, 11
Inessa05 [86]

Answer:

The median value will be 8.

Step-by-step explanation:

The simplest way to think of a median is as a sort of "middle" value. We want to arrange our numbers from lowest to highest, then select the one in the middle. Here is another example:

3, 5, 2, 7, 3, 9, 1, 4, 7

The first step is to order these numbers from lowest to highest, like so:

1, 2, 3, 3, 4, 5, 7, 7, 9

The number in the middle of this set is 4.

The problem you have presented, as well as the above example, both deal with an odd amount of numbers. Your problem has seven numbers, and the example I gave has nine. For any odd amount of numbers, the median is the value in the middle. But what about an even amount of numbers?

Consider:

9, 4, 3, 7

Let's rearrange this:

3, 4, 7, 9

Now, there will be two "middle" values: 4 and 7. The median value will be the average of these two values:

\text{median} = \frac{4 + 7}{2} = \frac{11}{2} = 5.5

I hope that helps!

7 0
4 years ago
Jessica eats at a cafe and the cost of her meal is $31.00. Because of the service, she wants to leave a 5% tip. What is her tota
Artyom0805 [142]
I hope that this is the right answer!

6 0
3 years ago
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Always sometimes never: one angle in a triangle is more than 90°
olga2289 [7]

Answer:

sometimes

Step-by-step explanation:

it can be only possible in case of obtuse triangle.

4 0
3 years ago
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PLEASE HELP<br> ‼️50 POINTS‼️
nirvana33 [79]

Answer: it is  4i78f4950

Step-by-step explanation:

6 0
3 years ago
Factor the polynomial completely. Check your answer.<br> 20x^3 - 245xy^2
Alexeev081 [22]

Answer:

5x(4x^2 - 49y^2) or 5x(2x-7y)(2x+7y)

Step-by-step explanation:

20x^3 - 245xy^2

5x(4x^2 - 49y^2)

Check your answer:

5x(4x^2 - 49y^2)

5x(4x^2) + 5x(-49y^2)

20x^3-245xy^2

5x(4x^2 - 49y^2) can also be written as:

5x(4x^2 - 49y^2)

5x(2x-7y)(2x+7y)

5x(4x^2+14xy-14xy+49y^2)

5x(4x^2+49y^2)

5x(4x^2) + 5x(-49y^2)

20x^3-245xy^2

Hope this helps!

3 0
2 years ago
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