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rewona [7]
3 years ago
8

Please help with the top 3 i’ll give u brainliest, what is the volume of the figures below?

Mathematics
1 answer:
jasenka [17]3 years ago
8 0

Answer:

im sorry but i only know the second one, i believe its 224.3

Step-by-step explanation:

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Nine fifths multiplied by twenty three over eighteen
andreyandreev [35.5K]
Take 9x23= 207
Then 5x18= 90

Now simplify
207divided by 3=69
90 divided by 3= 30

Now I’m gonna divide by 3 again
69/3=23
30/3=10

23/10 would be your answer

4 0
3 years ago
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Factor the expression over the complex numbers.<br> x^2 +20 <br> Enter your answer in the box.
allsm [11]

Answer:

(x-2\sqrt{5}i )(x+2\sqrt{5}i )

Step-by-step explanation:

Let solve this first:

x^2 + 20 = 0\\x^2 = -20\\x = \sqrt{-20} \\x=\sqrt{20}i

Note: i = √-1

Using the property of radicals [√a√b=√(ab)], we can write √20 as:

√20 = √4√5 = 2√5

We can write:

x = ± 2√5 i

If we take the two roots (answers) as -a, and a, then we can write the factorization as:

(x - a ) (x + a)

Thus this factorization is:

(x-2\sqrt{5}i )(x+2\sqrt{5}i )

6 0
3 years ago
What is -11=x/9-10? plz helps
PolarNik [594]

Answer:

x=11

Step-by-step explanation:

-11=x/-1

x=-11×-1

x=11

3 0
3 years ago
2. The length of a bacterium is about .00004 inch. Write this length in scientific notation?
aleksley [76]
4x10^-5

Hope this helps :)


4 0
3 years ago
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A pile of sand is in the shape of a cone. The diameter of the sand pile is 18 feet and the height is 10 feet.
Mnenie [13.5K]
V=pi*(r )upper 2 * h
v= 3.14 (9*9 ) * 10
=847.8
8 0
3 years ago
Read 2 more answers
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