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andreev551 [17]
2 years ago
12

Please answer as quickly as you can! ♥ Find two possible dimensions for a cylinder that has a volume of 64π cm³.

Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
3 0

Answer:

Possible dimensions are r=4\,\,cm\,,\,h=4\,\,cm and h=16\,\,cm\,,\,r=2\,\,cm

Step-by-step explanation:

Given:

Volume of a cylinder is 64\pi\,\,cm^3

To find: Dimensions of a cylinder

Solution:

Let r,h denote height of a cylinder.

Volume of a cylinder = \pi r^2h

Therefore,

64\pi=\pi r^2h\\64=r^2h\\4^2\,4=r^2h

One possible dimension can be r=4\,\,cm\,,\,h=4\,\,cm.

Also, 64=r^2h can be written as 16(2^2)=hr^2

So, another possible dimension can be h=16\,\,cm\,,\,r=2\,\,cm

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irga5000 [103]

Answer:

$2.25

Step-by-step explanation:

1. 20-6.50= 13.50

2. 13.50/6(pieces of candy) = $2.25

8 0
2 years ago
5. Simplify the expression,<br> (-2 - 5i) - (-4+6i)<br> 2 - 11i<br> -2+i<br> -6 + 11i<br> -5i
monitta

\qquad\qquad\huge\underline{{\sf Answer}}♨

Let's simplify ~

\qquad \sf  \dashrightarrow \:( - 2 - 5i) - ( - 4 + 6i)

\qquad \sf  \dashrightarrow \: - 2 - 5i +  4  -  6i)

\qquad \sf  \dashrightarrow \: - 2 +  4   - 5i-  6i)

\qquad \sf  \dashrightarrow \:2 - 11i

Therefore, A is the Correct choice !

7 0
2 years ago
Solve this right now for a billion dollars
Tema [17]

Answer:

Step-by-step explanation:

Simplifying

2.1x + -5.7 = 3.9(4.3 + -1.8x)

Reorder the terms:

-5.7 + 2.1x = 3.9(4.3 + -1.8x)

-5.7 + 2.1x = (4.3 * 3.9 + -1.8x * 3.9)

-5.7 + 2.1x = (16.77 + -7.02x)

Solving

-5.7 + 2.1x = 16.77 + -7.02x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7.02x' to each side of the equation.

-5.7 + 2.1x + 7.02x = 16.77 + -7.02x + 7.02x

Combine like terms: 2.1x + 7.02x = 9.12x

-5.7 + 9.12x = 16.77 + -7.02x + 7.02x

Combine like terms: -7.02x + 7.02x = 0.00

-5.7 + 9.12x = 16.77 + 0.00

-5.7 + 9.12x = 16.77

Add '5.7' to each side of the equation.

-5.7 + 5.7 + 9.12x = 16.77 + 5.7

Combine like terms: -5.7 + 5.7 = 0.0

0.0 + 9.12x = 16.77 + 5.7

9.12x = 16.77 + 5.7

Combine like terms: 16.77 + 5.7 = 22.47

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Divide each side by '9.12'.

x = 2.463815789

Simplifying

x = 2.463815789

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Read 2 more answers
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Answer:

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3 ≤  \frac{4}{5}x - 2y

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