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stealth61 [152]
3 years ago
12

A 12-sided polygon will contain ?? straight angles in the sum of its vertices. Pls help me

Mathematics
1 answer:
34kurt3 years ago
5 0
<u>A rule to remember:  </u>
The inside angles of a polygon with 'N' sides add up to (N - 2) straight angles.

12 sides ==> 10 straight angles = 1,800 degrees
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omar will donate up to $500 to charity. the money will be divided between two charities: the city of youth fund and educational
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Answer:

Please refer to the attached graph

Step-by-step explanation:

Knowing the following:

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Y = amount of money donated to the educational growth foundation

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If we graph both equations we can see the area where both conditions are met (see graph attached)

Where the blue line is (a) and the red line is (b)

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6 0
2 years ago
Which of the following expressions correctly uses the properties of summations to represent
madam [21]

Answer:

Option C is correct.

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Step-by-step explanation:

Given the expression:  \sum_{i=1}^{18} (7i^2+9)

Using properties of summation:

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Using properties of summation in the given expression we have;

\sum_{i=1}^{18} (7i^2+9)

= \sum_{i=1}^{18} 7i^2 + \sum_{i=1}^{18} 9

=7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18

Therefore, the following given expression uses the properties of summation to represents is, 7 \cdot \sum_{i=1}^{18} i^2 + 9 \cdot 18


8 0
3 years ago
Read 2 more answers
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