2 years ago

Find the probability of correctly answering the first 3 questions on a multiple choice test if

Mathematics

1 answer:

Mrrafil [7]2 years ago

3 0

Answer:

Step-by-step explanation:

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Find the volume of the cone with a radius of 2 inches and a height of 5 inches

lorasvet [3.4K]

$\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=2\\ h=5 \end{cases}\implies V=\cfrac{\pi (2)^2(5)}{3} \\\\\\ V=\cfrac{20\pi }{3}\implies V\approx 20.94$

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3 years ago

Prove that the square of an odd number is always 1 more than a multiple of 4

loris [4]

Answer:

By these examples you are able to see that the square of an odd number is always 1 more than a multiple of 4.

Step-by-step explanation:

For examples,

Let's consider squares of 3, 11, 25, 37 and 131.

${3}^{2} = 9$

8 is a multiple of 4, and 9 is more than 8.

${11}^{2} = 121$

120 is a multiple of 4 and 121 is one more than it.

${25}^{2} = 625$

624 is a multiple of 4 and 625 is one more than it.

${37}^{2} = 1369$

1368 is a multiple of 4 and 1369 is one more than 1368.

${131}^{2} = 17161$

17160 is a multiple of 4.

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2 years ago

Help me plzz im almost. out of time

masha68 [24]

No I do not agree with (2,-4) I believe the solution is (-4,2)

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2 years ago

Can anyone help me out ?

AnnZ [28]

no se pero de seguro alguien más te ayudará

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2 years ago

The total cost to rent a row boat is $14 times the number of hours the boat is used. Write an equation to model this situation i

Scrat [10]

The total cost is c the you just multiply 14 by the number of hours so it would be C=$14h

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2 years ago