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sergij07 [2.7K]
2 years ago
12

Could someone help me with this pls

Mathematics
1 answer:
barxatty [35]2 years ago
8 0

Answer:

7.99

Step-by-step explanation:

using the formula

v = \pi \: r  ^{2} h

3014.4 = 22 \div 7 \times r ^{2}  \times 15

21100.8 = 22 \times 15 \times r {}^{2}

21100.8 = 330 \times r {}^{2}

21100.8  \div 330 = r {}^{2}

\sqrt{63.94 }= r

r = 7.99ft \: answer

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How can you use distributive property to find 3/4 times 2 and 1/3
zubka84 [21]

Answer:

1 3/4

Step-by-step explanation:

You can set it up like the distrubtive property first

3/4(2+ 1/3)    Next you use the distirbutive property instead of adding inside the parenthesis and you multiply the 3/4 by 2 and then the 3/4 by 1/3

Use 2 as 2/1 in fraction problems

3/4 * 2/1        Now multiply the numerators together and the denomenators together

3 * 2 = 6          4 * 1 =4

6/4

3/4 *1/3

3 * 1 =3

4 * 3 =12

3/12

Now we have to make them both like terms (same denominator) so we can add them, we will multiply the 6/4 by 3 (Both top and bottom)

6 * 3 = 18               4 *3 =12

18/12

Now we add the fractions

3/12 +18/12 = 21/12

Reduce that and you get

21/12 = 1 9/12  or 1 3/4

5 0
3 years ago
For thanksgiving, you made 32 cupcakes. How many cupcakes were leftover if your family ate 3/4 of them?
Anvisha [2.4K]
All you need to do is divide 32 by 4.

32/4= 8

So, 3*8= 24 (that is 3/4 of the cupcakes)

32-24= 8

8 is the answer.

I hope this helps!

Brainliest answer is always appreciated! 
4 0
3 years ago
Read 2 more answers
What is the X<br> 3x +15 and 2x + 20
Georgia [21]

Answer:

<h2><u><em>x = 5</em></u></h2>

Step-by-step explanation:

What is the X

3x +15 and 2x + 20

assuming that the question is an equation

3x + 15 = 2x + 20

3x - 2x = 20 - 15

x = 5

-----------------

check

3 * 5 + 15 = 2 * 5 + 20

30 = 30

the answer is good

5 0
2 years ago
Find the distance between each pair of point. Round to the nearest hundredth(-8, -2) and (6, -1)
Murljashka [212]

Answer:

the square root of 197

Step-by-step explanation:

delta x=14

delta y=1

therefore with the Pythagorean theorem, the hypotenuse/distance is the square root of 197

7 0
3 years ago
What is the solution to the inequality below x^2&gt;81
dem82 [27]

Answer:

x>9

Step-by-step explanation:

4 0
4 years ago
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