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pentagon [3]
2 years ago
12

Of the 600 people at a music festival, 420 had attended the previous year. how many people out of 100 had attended the previous

year?
A 42
B 60
C 80
D 70
Mathematics
1 answer:
Advocard [28]2 years ago
3 0
Answer is D. Hope I helped have a good day
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6 pounds of candy cost 22.44 how much is 1 pound
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So you divide 22. 44 by 6 it will be 3.74 . See image for steps


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Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)
tangare [24]

Finding the slope using two points:

The formula for slope is

\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

In this case...

y_{2} =-2\\y_{1} =4\\x_{2} =6\\x_{1} =-2

^^^Plug these numbers into the formula for slope...

\frac{-2 - 4}{6 - (-2)}

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\frac{-3}{4}

^^^This is your slope

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3 years ago
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A prism whose base is a 9-sided polygon is intersected by a plane. In which case could the cross section be a 10-sided polygon?
Vikki [24]
The <u>correct answer</u> is:

D) <span>when the plane makes a narrow angle with the base.

Explanation:

If a cross section of a prism is taken <u>parallel</u> to the base, the cross section will be the <u>same shape</u> as the base.  In this case, it will be a 9 sided polygon.

If a cross section of a prism is taken <u>perpendicular</u> to the base, the cross section will be a <u>rectangle</u>, no matter how many edges the cross section goes through.

The only way to get a cross section with more sides than the original figure is to take a slant cross section, or one with an angle other than 90</span>° or 180° to the base.  This makes D our only option.
5 0
3 years ago
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Simplify nine square root of two minus three square root of seven plus square root of eight minus square root of twenty eight.
avanturin [10]

Answer:

11\sqrt{2} - 5\sqrt{7}

Option (A) is the correct answer.

Step-by-step explanation:

9\sqrt{2} - 3\sqrt{7} + \sqrt{8} - \sqrt{28}

Now, \sqrt{8} = \sqrt{2 \times 2 \times 2} = 2\sqrt{2}

\sqrt{28} = \sqrt{2 \times 2 \times 7} = 2\sqrt{7}

∴ 9\sqrt{2} - 3\sqrt{7} + \sqrt{8} - \sqrt{28}

= 9\sqrt{2} - 3\sqrt{7} + 2\sqrt{2} - 2\sqrt{7}

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= 11\sqrt{2} - 5\sqrt{7}

Therefore option (a) is the correct answer.

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