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Wewaii [24]
3 years ago
12

The area of a circular fountain is 225πft2. What is the diameter of the fountain?

Mathematics
1 answer:
-BARSIC- [3]3 years ago
5 0

Using the formula for area of a circle: area = pi x r^2

You now have:

225pi ft^2 = pi x r^2

Divide both sides by pi:

225 = r^2

Take the square root of both sides:

r = 15

The radius is 15 feet.

The diameter is the radius x 2:

Diameter = 15 x 2 = 30 feet.

Answer: 30 feet.

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Murrr4er [49]

Answer:

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Step-by-step explanation:

A suitable table or calculator is needed.

One standard deviation from the mean includes 68.27% of the total, so the number of bottles in the range 20 ± 0.16 ounces will be ...

  0.6827·26,000 = 17,750 . . . . . within 20 ± 0.16

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The number below 1.5 standard deviations below the mean is about 6.68%, so for the given sample size is expected to be ...

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<em>Comment on the first number</em>

The "empirical rule" tells you that 68% of the population is within 1 standard deviation (0.16 ounces) of the mean. When the number involved is expected to be expressed to 5 significant digits, your probability value needs better accuracy than that. To 6 digits, the value is 0.682689, which gives the same "rounded to the nearest integer" value as the one shown above.

4 0
4 years ago
If the area of the rectangle is five times the area of the triangle work out the width of the rectangle please help !
Mariulka [41]

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Step-by-step explanation:

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6 0
3 years ago
10 Write the fraction two different ways.
Cerrena [4.2K]

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Step-by-step explanation:

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5 0
3 years ago
item 3 lamar gives his dog a pill once each day. each pill contains 3.6 milligrams of medicine. how many grams of medicine does
babymother [125]

Multiplication is the process of multiplying. The amount of medicine that Lamar's dog will have in one week is 25.2 milligrams.

<h3>What is multiplication?</h3>

Multiplication is the process of multiplying, therefore, adding a number to itself for the number of times stated. For example, 3 × 4 means 3 is added to itself 4 times, and vice versa for the other number.

Given a medicine provides 3.6 milligrams of medicine. Therefore, the amount of medicine the dog will have in a week is,

The amount of medicine = 3.6milligrams × 7 = 25.2 milligrams

Hence, the amount of medicine that Lamar's dog will have in one week is 25.2 milligrams.

Learn more about Multiplication:

brainly.com/question/14059007

#SPJ1

6 0
2 years ago
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docker41 [41]
The answer should be

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Let me know if it’s right.
6 0
3 years ago
Read 2 more answers
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