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3 years ago

A regular polygon has 12 sides, each length 5, and apothem length 10. what is the area of the polygon? 600 450 300

1 answer:

7 0

Polygon area = (#sides * side length * apothem) / 2
polygon area =(12 * 5 * 10) / 2

polygon area = 300
Source:http://www.1728.org/polygon.htm

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Find the mean of the first 7 odd prime number?

bekas [8.4K]

Answer: 75/7 or 10.71 (rounded)

Step-by-step explanation:

Mean = Average

To find the average you should add all the numbers together and then divide it by the amount of numbers.

In this question, the formula is $\frac{n_1+n_2+n_3+n_4+n_5+n_6+n_7}{7}$

----------------------------------------------------------------------------------------

The list of the first 7 odd prime numbers:

3, 5, 7, 11, 13, 17, 19

Now, add them together

3+5+7+11+13+17+19=75

Divide the sum by 7

75÷7=75/7=10.71 (rounded)

Hope this helps!! :)

Please let me know if you have any questions

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anzhelika [568]

The answer is D as said above

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Using the distributive property, an equivalent is
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The first week they drank 2 gallons 1quart and 1cup. The second week the drank 3 gallons how much more cups of milk did they dri

stellarik [79]

Answer:

11 cups

Step-by-step explanation:

there are 4 quarts in a gallon

and there is 4 cups in a quart

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3 years ago

Please help i’ll give brainliest

Luba_88 [7]

In a 45 - 45 - 90 right triangle, the hypotenuse is √2 · legs = hypotenuse, so legs= $\frac{\sqrt{5}}{\sqrt{2}}$ and to rationalize the denominator all we have to do is multiply the numerator and denominator by √2. $\frac{\sqrt{10}}{2}$ .

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Read 2 more answers