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borishaifa [10]
4 years ago
5

20 POINTS!!!!!

Mathematics
1 answer:
harina [27]4 years ago
4 0

Answer:

20.  300π m³

21.  457 1/3 π cm³

Step-by-step explanation:

20. r = 10 ÷ 2 = 5

V = 5² × 12 × π = 25 × 12π=300π m³

21. r = 14 ÷ 2 = 7

V = \frac{4}{3} \pi 7x^{3}

V = 457 1/3 π cm³

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3 years ago
Write an equation of a line that passes through the point (0,-2) and is perpendicular to the image shown.
Elina [12.6K]

Answer:

Brainliest Answer would be appreciated. Option 1 is the best

Step-by-step explanation:

The slope of the line on the graph is -1/3. A perpendicular line's slope is always the negative reciprocal of it, so your slope of the perpendicular line would be 3.

Also, since you are passing through the point (0, -2), -2 would be your y-intercept, making your equation for the perpendicular line y = 3x - 2.

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3 years ago
THE MEASURE OF ANGLE #2 <br><br> THE MEASURE OF ANGLE #3
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Answer:

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3 0
3 years ago
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I need some help with binomial theorems. can anyone help solve this?
Svetlanka [38]
Use Pascal's Triangle

1
1 1
1 2 1
1 3 3 1
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So, the seventh term of (3x + 2y)^9 will be 84xy
8 0
4 years ago
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Eric is looking to go shopping, as he knows he needs more ties and shirts. Eric is looking for his ties and discovers that he cu
mars1129 [50]
<h2>1 way</h2>

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After shopping Eric has 50 shirts

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<h2>2 way</h2>

If he has 2 ties for 1 shirt he will have

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4 0
3 years ago
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