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zheka24 [161]
3 years ago
14

What is the volume of a cone with radius 7 cm and height 11 cm? Round your answer to two decimal places.

Mathematics
1 answer:
a_sh-v [17]3 years ago
5 0

Answer:

D. 564.44 cm^3

Step-by-step explanation:

V = (1/3)(pi)r^2h

V = (1/3)(3.14159)(7 cm)^2(11 cm)

V = 564.44 cm^3

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A box contains 15 lbs.of books. There are 20 books in the box. How much does each book weigh?
Setler79 [48]

Answer:

0.75 lbs.

Step-by-step explanation:

Okay, this one is more simple. To find the weight of each book, You have to solve this division problem:

15/20

If you divided it the other way around, you would be saying each book weighed 1.33 pounds. That wouldn't be correct because then you would have over 20 lbs. of books, when you only have 15.

So, the answer is 0.75 pounds.

6 0
3 years ago
2x² +6 = 8x<br>what are the values of x here? ​
balandron [24]
X1 = 1
x2 = 3
Hopefully this helped!
5 0
3 years ago
Read 2 more answers
Can someone explain to me how to remove all the perfect squares ? I’m kind of confused and my teacher is unavailable to help and
mixer [17]

Answer:

b^2√30b

Step-by-step explanation:

√30b^5 - Original

Break down the radical with its factors (factor tree)

√3*2*5*b*b*b*b*b  

See what perfect squares you can take out (Can take out four b terms)  You cant take out any perfect squares involving 30 since there are no perfect squares

b^2√3*2*5*b

b^2√30b

4 0
2 years ago
um am playing a game i forgot the math anwser the qusitoin says that the sum is 9 and thier diffrince is 1 what are the two numb
Virty [35]

Answer:

8

Step-by-step explanation:

All you have to do it subtract 9 from 1 than that's it your answer.

3 0
3 years ago
Some please help me out ASAP !!!!
VMariaS [17]

Answer:

About 3

Step-by-step explanation:

Since all real life objects have three dimensions, if you increase the dimensions of an object by a certain factor, the object's volume is greater by the factor cubed.

1500*x^3=45000

x^3=30

x is about 3

Hope this helps!

8 0
3 years ago
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