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Anna35 [415]
3 years ago
8

Which expression is equivalent to (2mn)^4/6m^-3 n^-2? Assume m=0 n=0​

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
4 0

Answer:

7m-(7n-18m)

Step-by-step explanation:

m=0, n=0.

8m^7n^6/3 10m^7n^6/3 8m^16n^12/3 m^4n^6/3

-7m-(3n-(8m-4n-10m)

-7m-(3n-(8m-4n+10m))

-7m-(3n-(18m-4n))

-7m-(3n-18m+4n)

-7m-(7n-18m)

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What value of n makes the equation ? 4(0.5-3)=n-0.25(12-8n)​
Free_Kalibri [48]

Answer:

4(0.5-3)=n-0.25(12-8n)

2-12=n-3+2n

-10=-3+3n

-10+3=3n

-7=3n

n=-2.3

7 0
3 years ago
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Are positive and negative numbers the same?<br><br>TRUE or FALSE​
andriy [413]

Answer:

false: positive and negative numbers are on two completely opposite sides of a number line, coordinate plane, etc. Just like 4 is different than 5, it is the same with positive and negative numbers

4 0
2 years ago
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Can someone help me solve this?
julsineya [31]

Answer:

im sorry i cant see that

Step-by-step explanation:

8 0
3 years ago
I need help fast what is 9m−​(3+7​m) simplified?
iogann1982 [59]

Answer:

Simplifying 9m + -3 + -7m = 0

Reorder the terms: -3 + 9m + -7m = 0

Combine like terms: 9m + -7m = 2m -3 + 2m = 0 Solving -3 + 2m = 0

Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right.

Add '3' to each side of the equation. -3 + 3 + 2m = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 2m = 0 + 3 2m = 0 + 3 Combine like terms: 0 + 3 = 3 2m = 3

Divide each side by '2'. m = 1.5

Step-by-step explanation:

Hope this helps :)

4 0
3 years ago
Which answer is the approximate standard deviation of the data set?
Anna35 [415]

Answer:

3.4

Step-by-step explanation:

Standard deviation of a population is defined as:

σ² = ∑(xᵢ − μ)² / n

The standard deviation of a sample is defined as:

s² = ∑(xᵢ − x)² / (n - 1)

It's not clear which one we have, so let's calculate both.

First, we must find the mean.

μ = (5+12+15+10+12+6+8+8) / 8

μ = 9.5

Now we find the squares of the differences:

(5-9.5)² + (12-9.5)² + (15-9.5)² + (10-9.5)² + (12-9.5)² + (6-9.5)² + (8-9.5)² + (8-9.5)²

= 80

Divide by n:

σ² = 80 / 8

σ² = 10

And take the square root:

σ = √10

σ ≈ 3.2

That's not one of the answers, so let's try the standard deviation of a sample instead of a population.

Instead of dividing by n, we'll divide by n-1:

s² = 80 / 7

And take the square root:

s = √(80/7)

s ≈ 3.4

So that must be it.

6 0
3 years ago
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