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IRISSAK [1]
3 years ago
15

A cone has a diameter of 23 inches and a height of 19.7 inches. Select all of the expressions that could be used to find the vol

ume of the cone in cubic inches? Use 3.14
Mathematics
2 answers:
iris [78.8K]3 years ago
6 0

Answer:

2727

Step-by-step explanation:

The formula for finding the volume of a cone is

1/3πr²h

The radius would be 11.5 because, radius equals the diameter divided by two.

So, first you would plug your numbers into the equation

1/3(π)(11.5)²(19.7)

*use 3.14 for pi

Then multiply.

V = 2726.9 (2727 if you round to the nearest whole number)

Zinaida [17]3 years ago
4 0

Where’s The Expressions?

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Vesnalui [34]

Answer:

No. Remember, a right angle must have a 90 degree angle. We can find the lengths with the Pythagorean Theorem.

Step-by-step explanation:

Given the length 7, 10, and 12, we can assume that 12 is the hypotenuse (it is the longest length).

- we can use 7 and 10 interchangeably.

Fill in the equation, a^2 + b^2 = c^2

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To indicate if the given lengths would form a right angle, we can only input 7 or 10, not both.

Therefore, 7^2 + b^2 = 12^2 or 10^2 + b^2 = 12^2

7^2 + b^2 = 12^2 ==> 49 + b^2 = 144 ==> <u>b= </u>\sqrt{95<u> ==> </u><u>9.746</u>

b= 9.7, not 10.

10^2 + b^2 = 12^2 ==> 100 + b^2 = 144 ==> <u>b = </u>\sqrt{44<u> ==> </u><u>6.633 </u>

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Therefore, the lengths 7, 10, and 12, does NOT make a right triangle.

Hope this helps!

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3 years ago
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OleMash [197]

Answer:

<u>(-4,-7)</u>

Step-by-step explanation:

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4 0
3 years ago
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Nonamiya [84]

Answer:

No, it is not in scientific notation. The first factor is not greater than or equal to 1.​

Step-by-step explanation:

Scientific notation is a method of writing numbers as the product of two factors where the first factor is a number whose absolute value is greater than or equal to 1 but less than 10.

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4 years ago
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Step-by-step explanation:

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Serhud [2]

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Step-by-step explanation:

7/2= 3.5

3.5/2= 1.75

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3 years ago
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