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aleksandr82 [10.1K]
2 years ago
7

The product of eight and the sum of a number and nine

Mathematics
1 answer:
Crazy boy [7]2 years ago
8 0
8(n + 9) <== ur expression
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Using the quadratic formula to solve 7x2 -x = 7, what are the values of x?
Sunny_sXe [5.5K]

Answer:

x=-7

Step-by-step explanation:

7x2-x=7

7x2=14.

14-x=7

When you finished the last step, you will subtract 14 to both sides.

14-x=7

14-14-x=7-14

this will cancel out the 14 on the left.

And will leave you with:

-x=7-14

7-14 is -7.

and this will get you to

-x=-7

To finish this off, you have to turn the negative x/variable, into a positive x/variable.

So, you will divide both sides of the equation by the same term.

-x = -7

into

\frac{-x}{1} =\frac{-7}{1}

and it will be -7.

I hope this helps      :)

8 0
3 years ago
Please help me find the answer​
Ksivusya [100]

Answer:

-4 1/4

Step-by-step explanation:

-7 3/4 + 3 1/2 = -4 1/4

8 0
3 years ago
-9/2+ 1/2 + 13/2 = -1/2 (8+13)
AysviL [449]

Answer:

−9

2

+

1

2

+

13

2

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=

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2.5≠−10.5

False

Step-by-step explanation:

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3 years ago
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DENIUS [597]

it would be 35/3 or 11 2/3
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3 years ago
Enter the value that is that is missing
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The rate or slope is 2.15 $/gal

2.15 x 15 = 32.25
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