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3 years ago

Volume of a cylinder with a diameter of 6 inches and a height that is three times the radius

Mathematics

2 answers:

Harlamova29_29 [7]3 years ago

8 0

Answer:

254.47 i think

Step-by-step explanation:

Elis [28]3 years ago

3 0

Answer: 254.47 cubic inches

Step-by-step explanation:

You are told that d = 6 so since the radius is half the diameter, r = 3. Use this to find h: h is 3 times the radius so h = 3 times 3 = 9. Now use the formula for the volume of a cylinder and plug in these values:

V = pi r^2 h

V = pi (3)^2 (9) = 81pi = 254.47 cubic inches

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What is the unit rate of 8 miles and 92 minutes?

Alinara [238K]

11.5 minutes per mile

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3 years ago

Ten years ago Victors age WAs half of the age he will be in 10 years how old is he now?

ICE Princess25 [194]

By solving a linear equation, we will see that Victor is 30 years old.

<h3>How old is Victor now?</h3>

Let's say that Victor is x years old.

We know that 10 years ago, (x - 10), his age was half of what it will be in 10 years (x + 10).

Then we can write the linear equation:

(x - 10) = (x + 10)/2

Now we can solve that equation for x:

2*(x - 10) = x + 10

2x - 20 = x + 10

2x - x = 10 + 20

x = 30

So we conclude that Victor is 30 years old.

If you want to learn more about linear equations:

brainly.com/question/1884491

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3 0

1 year ago

Simplify the radical (180°.

statuscvo [17]

Answer:

radical is sqrt we find 180 sqrt root

Step-by-step explanation:

first we write sqrt 180

sqrt 180 = ?

we can choose first two letters

18 are two letters

4^2 + 2 = 18

so first + third number choose

4 , 2 are number choose

4 + 2 sqrt (4+2-1)

6 sqrt 5

sqrt 180 = 6sqrt 5

6 0

2 years ago

Joan found a large metal bar that weighed 36 grams. Joan was also able to determine that the bar had 18 grams of zinc. What perc

tatiyna

Answer:

The weight of the zinc in the metal bar was 50% of the weight of the metal bar .

Step-by-step explanation:

Weight of the metal bar ,M= 36 g

Weight of the zinc in the metal bar , m= 18 g

Percentage of zinc in the metal bar :

$=\frac{m}{M}\times 100$

$=\frac{18 g}{36 g}\times 100=50\%$

The weight of the zinc in the metal bar was 50% of the weight of the metal bar .

6 0

3 years ago

Solve to find x <br> log (3x+5) to base 5= 2log (1-3x) to base 25

Eduardwww [97]

Answer:

x = -2/ 3

Step-by-step explanation:

in order to cancel out the logs they should have common bases

$\mathsf{ log_{5}(3x + 5) = 2 log_{25}(1 - 3x) }$

we can write 25 as 5²

$\mathsf{ \implies log_{5}(3x + 5) = 2 \: log_{ {5}^{2} }(1 - 3x) }$

we know that the reciprocal of the exponents of the bases are multiplied to the log

$\mathsf{ \implies log_{5}(3x + 5) = \frac{1}{\cancel{2} } \times \cancel{2} \: log_{ 5}(1 - 3x) }$

and now since the logs have common bases

$\mathsf{ \implies \cancel { log_{5}}(3x + 5) = \cancel{ log_{ 5}}(1 - 3x) }$

we're left with

$\mathsf{ \implies 3x + 5 = 1 - 3x}$

$\mathsf{ \implies 9x = -4}$

<u>x = -2/ 3</u>

8 0

2 years ago