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IRINA_888 [86]
4 years ago
13

Simplify 9x-7z+ 3y+10-2x

Mathematics
2 answers:
Genrish500 [490]4 years ago
4 0

Answer:

7x - 7z + 3y + 10

Step-by-step explanation:

Stella [2.4K]4 years ago
3 0

Answer:

7x+3y-7z+10

Step-by-step explanation:

You need to combine like terms.

First you do 9x-2x to get 7x

Then you put the rest of the problem together in alphabetical order first then regular numbers.

This would be x, y, z, and then 10

Lastly, you get 7x+3y-7z+10

Hope this helps!

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Answer: -1.78

Step-by-step explanation:

As per given description, we have

Population proportion : p=0.35

Sample size : n= 500

Sample proportion : \hat{p}=\dfrac{156}{500}=0.312

Test statistic for population proportion :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\\\=\dfrac{0.312-0.35}{\sqrt{\dfrac{0.35(1-0.35)}{500}}}\\\\=-1.78146747757\ \ \text{(Simplified)}\\\\\approx-1.78

Hence, the test statistic for this hypothesis test for a proportion= -1.78

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4 years ago
There are six different candidates for governor of a state. in how many different orders can the names of the candidates be prin
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Sorry, I don't have the answer to your question
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Serggg [28]

y = (x - 2)(x + 5)    First I would multiply (x - 2) and (x + 5) together

y = x² + 5x - 2x - 10

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Next I would plug in a number for x to find its y value. I will plug in 0

y = 0² + 3(0) - 10

y = -10

(0, -10)   [this is the y-intercept (the y value when x = 0)]


Your answer is Graph A because the y-intercept is (0,-10)

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671/1296

The probability of rolling at least one six is therefore 1 − 625/1296 = 671/1296 ≈ . 517.

Step-by-step explanation:

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