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Stella [2.4K]
2 years ago
11

Evaluate 5x-6y-7z-3x+2y-z-4x-3y+z

Mathematics
1 answer:
Mazyrski [523]2 years ago
6 0

Answer:

-2x-7y-7z

Step-by-step explanation:

I'm going to start off by separating the different variables and keeping the sign in front with it.

(5x-3x-4x) + (-6y+2y-3y) + (-7z-z+z)

After that it's simply solving a simplifying.

(-2x) + (-7y) + (-7z)

And your final answer should be...

-2x - 7y - 7z!

Hope I helped!

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Write the rational number as a decimal -8/5 -9 3/8 -9/11 6 7/27
marissa [1.9K]

-\frac{8}{5} = -1.6

-9\frac{3}{8} = -11.625

-\frac{9}{11} = -0.81818...

6\frac{7}{27} = 2.4814

7 0
2 years ago
Need help now!! 20 points!!
Gelneren [198K]

When you have something like this, all you need to do is substitute the values, the last is for what value of x

For the first one;

((x^2+1)+(x-2))(2)

(x^2+x-1)(2)

(2)^2+(2)-1

4+2-1

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For the second one;

((x^2+1)-(x-2))(3)

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(3)^2-(3)+3

9-3+3

9

For the last one;

3(x^2+1)(7)+2(x-2)(3)

3((7)^2+7)+2((3)-2)

3(49+7)+2(3-2)

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168+2

170

3 0
2 years ago
Find the slope of the line.
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There it is i found it :)

7 0
2 years ago
Read 2 more answers
Consignment Sale. Just Between Friends is the leading pop-up consignment sales event franchise in North America. The Des Moines
natita [175]

Answer:

Just Between Friends

The percentage of consignors who receive a check for more than $370 is:

= 16%.

Step-by-step explanation:

Mean of consignor check, μ = $480

Standard deviation, σ = $110

Value of check received, x > $370

Solution: find the z-score to determine the percentage of consignors who receive a check for more than $370:

z = (x-μ)/σ

z= ($370 - $480)/$110

z = -$110/$110

z = -1.00

Percentage of consignors who receive a check for more than $370

= 0.15866

= 0.16

= 16%

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2 years ago
On a cube, what proportion of the surface area is on each face, to the nearest percent?
Misha Larkins [42]

Answer:

Cubes have 6 equal faces, and the surface area is the sum of all of these faces. Thus, one face would be 1/6 of the cube's surface area, or about 17%.

Step-by-step explanation:

8 0
2 years ago
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