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saul85 [17]
3 years ago
7

Find the volume using the formula V= πr2h

Mathematics
1 answer:
Dimas [21]3 years ago
7 0

Answer: V=254.46\ in^3

Step-by-step explanation:

The formula for calculate the volume of a cylinder is the one given in the exercise:

V=\pi r^2h

Where "r" is the radius and "h" is the height of the cylinder.

You need to observe the figure given in the exercise. You can notice that the radius and the height of that cylinder are the following:

r=3\ in\\\\h=9\ in

Then, knowing those values, you can substitute them into the formula:

V=\pi (3\ in)^2(9\ in)

Finally you must evaluate in order to find the volume of the cylinder. You get the following result:

V=\pi (9\ in^2)(9\ in)\\\\V=81\pi\ in^3\\\\V=254.46\ in^3

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You line up the decimal
7 0
3 years ago
The table represents a linear function. Find the values of A and B.​
bazaltina [42]

Answer:

The answers are that a = -5 and b = 1

Step-by-step explanation:

In order to find A and B, we first need to find the equation of the line. We can do this by using two ordered pairs and the slope formula. For the purpose of this activity, I'l use (0, 5) and (-3, 11)

m(slope) = (y2 - y1)/(x2 - x1)

m = (11 - 5)/(-3 - 0)

m = 6/-3

m = -2

Now that we have this we can model this using point-slope form.

y - y1 = m(x - x1)

y - 5 = -2(x - 0)

y - 5 = -2x

y = -2x + 5

Now that we have the modeled equation we can use the ordered pair (a, 15) to solve for a.

y = -2x + 5

15 = -2(a) + 5

10 = -2a

-5 = a

And we can also solve for b using the ordered pair (2, b)

y = -2x + 5

b = -2(2) + 5

b = -4 + 5

b = 1

4 0
3 years ago
In Ms. Craig’s class, 75% of the students are boys. There are 18 boys in the class. What is the total number of students in Ms.
topjm [15]

Answer:

24

Step-by-step explanation:

75% of x = 18

75/100 * x = 18 (x =  total number of students)

solving

x = 24

total number of students = 24

Checking:

75/100 * 24 = 18

5 0
3 years ago
Solve this please help me
densk [106]

Answer:

1/2 or 0.5

Hope it helps!

7 0
3 years ago
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Plz help me well mark brainliest if you are correct!.....
Alex17521 [72]

Answer:

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