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Gwar [14]
3 years ago
10

rac{3}{x} - \frac{4}{x^2} " alt=" \frac{3}{x} - \frac{4}{x^2} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Mashcka [7]3 years ago
7 0

Answer:

X = -4 or X = 1

Step-by-step explanation:

  • 3/X - 4/x^2

  • 3x -.4/x^2
  • x^2 + 3x -4 =0
  • (X + 4 ) or ( x-1 )
  • X = -4 or X= 1

that I think (・∀・) I'm not sure it may wrong.

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Linear system word problem
soldi70 [24.7K]
Good job, you got the equations! XD

I'll just help you solve

Multiply the 2nd row by 9
<span>9x+9y=117</span>
<span><span><span>9x+27y=207

</span></span></span>Subtract the 2nd row from the 1st row
<span><span><span>−18y=−90
</span></span></span>Divide both sides by <span>−18</span>
<span><span><span>y=<span><span>−90/</span><span>−18
</span></span></span></span>Two negatives make a positive
<span><span>y=<span><span>90/</span><span>18</span></span></span><span>​​</span></span><span>
y = 5

Substitute 5 into an equation
9x+9(5)=11<span>7
</span>9x+45=11<span>7
</span>Subtract <span>45</span> from both sides
<span><span><span>9x=117−45

</span></span></span>9x=7<span>2
</span>Divide both sides by <span><span>9</span></span>
x = ___

Hope this will help​​</span></span>

3 0
3 years ago
Tell whether the situation should be represented by a continuous graph or a discrete graph.
andre [41]
1) Discrete graph

2) Continuous graph

I hope this helps! I would check with someone else first though.
6 0
3 years ago
The sale price of a pair of sneakers was $33.75. What is the discount % if the original cost is $75?
STALIN [3.7K]

Answer:

55%

Step-by-step explanation:

To find the percent discount

Take the original price and subtract the new price

75-33.75 =41.25

Divide this by the original price

41.25/75

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Multiply by 100

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This is the percent decrease

5 0
2 years ago
Read 2 more answers
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kakasveta [241]
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8 0
3 years ago
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Find the sum of 9x² - 6x + 7, 5-4 x<br>and 6-3x²​
puteri [66]

Answer:

6x² - 10x + 11

Step-by-step explanation:

Step 1: Write expression

(9x² - 6x) + (5 - 4x) + (6 - 3x²)

Step 2: Combine like terms

6x² - 10x + 11

3 0
3 years ago
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