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Tomtit [17]
3 years ago
12

Which expression is equivalent to 2r + 7r?

Mathematics
1 answer:
Oduvanchick [21]3 years ago
4 0

Answer: 9r

Step-by-step explanation:

You add like terms so if you add 2r and 7r, you get 9r

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Between 8 and 9
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Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the
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Jill has a poster hanging in her room whose width is 212 in. shorter than its length. The perimeter of the poster is 103 in. How
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The poster is a rectangle. 
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where L is the length and W is the width of a rectangle.
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4 0
3 years ago
The volume of this cylinder is 6,782.4 cubic yards. What is the radius?
anygoal [31]

Answer:

radius for this cylinder is 12 yd

Step-by-step explanation:

\boxed{Volume -of -cylinder=\pi r^2h}

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8 0
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