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Anuta_ua [19.1K]
3 years ago
11

Factor this expression.

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0

Answer:

D

Step-by-step explanation:

gogolik [260]3 years ago
5 0
The answer is D hope it help
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£70 is divided between Natasha, Richard & Stephen so that Natasha gets twice as much as Richard, and Richard gets three time
Korvikt [17]

The share of Natasha is £ 42

<em><u>Solution:</u></em>

£70 is divided between Natasha, Richard & Stephen

Total amount = 70

Let the share of natasha be "x"

Let the share of richard be "y"

Let the share of stephen be "z"

Natasha gets twice as much as Richard

x = 2y ------ eqn 1

Richard gets three times as much as Stephen

y = 3z

z = \frac{y}{3} ----- eqn 2

Total amount = 70

share of natasha + share of richard + share of stephen = 70

x + y + z = 70

Substitute eqn 1 and eqn 2

2y + y + \frac{y}{3} = 70\\\\\frac{6y+3y+y}{3} = 70\\\\10y = 210\\\\y = 21

Substitute y = 21 in eqn 1

x = 2y = 2(21) = 42

x = 42

Thus natasha gets £ 42

6 0
3 years ago
Show me how to solve this, please.<br> <img src="https://tex.z-dn.net/?f=%282.7%20%2A%2010%5E%7B-5%7D%29%20%2F%20%289%20%2A%2010
rusak2 [61]

Answer:

3

Step-by-step explanation:

2.7 * 10 ^-5 / 9 * 10 ^-6

First divide the numbers

2.7 / 9 = .3

Then divide the exponents

10^-5 / 10 ^ -6

When we divide exponents we subtract

10^(-5 - -6) = 10 ^1

.3 * 10 ^1

But scientific notation has a number between 1 and less than 10

Move the decimal 1 place to the left, so we subtract 1 from the exponent

3 * 10 ^ (1-1)

3 * 10 ^0

8 0
2 years ago
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Given the triangle<br> find the length of side 2 using the Law of Sines.
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After much work and 12 pages of notebook paper the answer is 28
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What is 5÷871 Equals two
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871 divided by 5 is 174.2
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(c) When organisms die, their bodies become food for decomposers.
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Answer

An example of a decomposer is a fungus. They are important because they recycle energy from consumers so it can be used again by producers to continue the cycle.

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3 years ago
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