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Artyom0805 [142]
3 years ago
12

Which of the following describes a rate?

Mathematics
1 answer:
malfutka [58]3 years ago
8 0

Answer:

All of them

Step-by-step explanation:

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3 years ago
Need help with question
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15 14/15

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The regular pentagon below is a scale drawing of an original pentagon that was made by using a scale factor of One-fourth. A hex
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Step-by-step explanation:

8 0
3 years ago
A games shop sells marbles
Taya2010 [7]
To start, the question is asking for surface area of a cylinder, meaning you will have to use this formula to find it: A=2πrh+2πr^2.

Since you already know that the diameter of the plastic cylinder is 4 marbles long, and each marble is 2 cm in diameter, you would multiply 4 and 2 to get that your diameter is 8 cm. However, since the surface area of a cylinder formula uses radius, you would simply divide 8 by 2 to get that the radius of the cylinder is 4 cm. 

Now, since you already know that the height of the cylinder is equal to 10 marbles, multiply the amount of marbles by 2 to get that the height of the cylinder is 20 cm. 

Now that you know the height and the diameter of the cylinder, plug the values into the formula: A=2π(4)(20)+2π(4)^2.
Assuming that pi is 3.14, simplify the equation as according to PEMDAS and you get that the area of plastic needed to make one cylinder is 602.88 cm squared
5 0
3 years ago
Suppose there are 8 blue, 4 green, 11 yellow, and 7 red buttons in a bag. If you randomly pick out one button, what is the proba
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3 years ago
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