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lions [1.4K]
2 years ago
15

Without graphing, determine the number of solutions to the system of equations.

Mathematics
2 answers:
elena-14-01-66 [18.8K]2 years ago
4 0

Answer:

Infinitely many solutions

Step-by-step explanation:

(1) ---- 6x - 4y = 9

(2)---- 12x - 8y = 18

If you multiply (1) by 2 → 12x - 8y = 18 --- (3)

and then when you compare (2) and (3), you'll find that you still can't find the value of X and Y therefore, there's infinitely many solutions

Alisiya [41]2 years ago
4 0

Answer:

Infinitely Many Solutions!!

Step-by-step explanation:

You need to do elimination method!!

This is because we need to top the equation to cancel out and become negative.  

6x−4y=9

12x−8y=18

You could do 6x and everything multiplied by -2. But 4y can do the same too!!

I rather do 4y x -2!

-12x+8y=-18

12x−8y=18

Everything cancels out!!

0=0

But 0 equals to 0 goes on forever so the answer is infinite solutions!!

**The reasoning behind the two other choices**

No solution would be like -3=0 which is not our case!!

One solution has something that goes into everything evenly!

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3 years ago
The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"? -2 -1 -1/2
iren2701 [21]

Answer:

a = -1.

Step-by-step explanation:

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3 years ago
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How would i work this out?
Varvara68 [4.7K]
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there some visits already recorded before 12:30. These visits are visits that you want to exclude but are included in the TOTAL visits

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Answer:

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Step-by-step explanation:

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