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1 year ago

The volume of a cylinder is 225π cubic inches,

Mathematics

1 answer:

aleksklad [387]1 year ago

5 0

The value of the height of the cylinder is 25cm.

According to the statement

we have to find that the height pf the cylinder with the given value of the volume.

So, For this purpose we know that the

The volume of a cylinder is the density of the cylinder which finds that the amount of material it can carry. Cylinder's volume is given by the formula, πr^2h.

From the given information:

The volume of a cylinder is 225π cubic inches, and the radius of the cylinder is 3 inches.

Then

volume = πr^2h

225π = π3^2h

Now, solve it then

225 = 9h

h = 25.

The value becomes 25.

So, The value of the height of the cylinder is 25cm.

Learn more about volume of a cylinder here

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Eliminate the parameter

8090 [49]

$y = x -2, x\geq 1$

Step-by-step explanation:

In the question given correct parameter is - 2) $y = x -2, x\geq 1$

Method -

$x= t^2 + 1$ ........................(1)

$y = t^2 - 1$ ..........................(2)

Let's solve the equation 1,

⇒ $x = t^2 +1$

⇒ $t^2 = x - 1$

Put the value of t² in equation 2

$y =t^2 - 1 \\y = x -1 -1\\y = x - 2$

Here we got the y parameter as $y = x -2$

So the option no .2 is the correct option 2) $y = x -2, x\geq 1$

4 0

2 years ago

Jan's age is 3 years less than twice tritt's age. The sum of their ages is 30. Find their ages.

Mashutka [201]

J + t = 30
j = 2t - 3

2t - 3 + t = 30
3t - 3 = 30
3t = 30 + 3
3t = 33
t = 33/3
t = 11 <=== tritt's age is 11

j = 2t - 3
j = 2(11) - 3
j = 22 - 3
j = 19 <== jan's age is 19

6 0

2 years ago

Read 2 more answers

PLEASE HELP 25PTS!! Select the correct answer from each drop-down menu.

lions [1.4K]

Answer:

The quality control facility operates for 10 hours each day.

Step-by-step explanation:

The given function models the number of cars that are put through a quality control test each hour at a car production factory.

The given function is

$c(t)= -t^2+8t+20$

We need to find the number of hours does the quality control facility operate each day.

Rewrite the given function it factored form.

$c(t)= -t^2+(10t-2t)+20$

$c(t)= (-t^2+10t)+(-2t+20)$

Taking out the common factors from each parenthesis.

$c(t)= -t(t-10)-2(t-10)$

$c(t)= (t-10)(-t-2)$

$c(t)=-(t-10)(t+2)$

The factored form of given function is c(t)=-(t-10)(t+2).

Equate the function equal to 0 to find the x-intercept.

$0=-(t-10)(t+2)$

$t-10=0\Rightarrow t=10$

$t+2=0\Rightarrow t=-2$

Number of hours cannot be negative. So from t=0 to t=10 quality control facility operate the cars.

Therefore the quality control facility operates for 10 hours each day.

7 0

2 years ago

Amelia wants to paint three walls in her family room. Two walls are 26 feet long by 9 ft wide. What is the total area of the wal

Ivan

We have to find the area of each wall and then multiply it by the number of gallons.
So the formula of the two walls are 2(26*9), which is 2(234) then simplified into 468.
Afterwards we have to multiply 468 * 250 and get 58500 sq ft
Ans:58500 sq ft

4 0

2 years ago

Which expression could be used to find the missing value in X Divided by 3/5 = 7/4

aleksklad [387]

Answer:

7/4*3/5

Step-by-step explanation:

x/3/5=7/4

*3/5 *3/5

x=7/4*3/5

7 0

3 years ago