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katen-ka-za [31]
3 years ago
12

find the volume of a cylinder with a diameter of 10 inches and a height that is 3 times the radius. Use the 3.14 for pie and rou

nd your answer to the nearest 10th
Mathematics
1 answer:
Paul [167]3 years ago
6 0

Answer:

1177.5 inches

Step-by-step explanation:

Volume of a cylinder = \pi r^{2} *h, where h is the height

Radius = 10/2 = 5                    radius is half the diameter

Height = 3*5 = 15                     height is 3 times the radius

V = 3.14 * (5^2) * (15)

= 3.14 *25 * 15

= 1177.5

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Answer:

Step-by-step explanation:

y'' + y' − 2y = 0, y(0) = a, y' (0) = 1

Auxialary equation is

m^2+m-2=0\\m=-2,1

General solution is

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To mix plaster for a dental model, 35 mL of water is used for 100g of plaster. How many mL of water should be used for 250g of p
laila [671]

Okay, here we have this:

Considering the provided information, we are going to calculate the requested value, so we obtain the following rule of three:

\begin{gathered} \frac{x}{35mL\text{ of water}}=\frac{250g\text{ of plaster}}{100g\text{ of plaster}} \\ x=\frac{250g\text{ of plaster}}{100g\text{ of plaster}}\cdot35mL\text{ of water} \end{gathered}

Solving for x:

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Finally we obtain that 87.5mL of water should be used for 250g of plaster.

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