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hichkok12 [17]
3 years ago
14

Use elimination metho to solve the system of equations ​

Mathematics
1 answer:
Nataly_w [17]3 years ago
4 0

Answer:

There are infinitely many solutions.

Step-by-step explanation:

3x + 2y = 7

-9x - 6y = -21

Now multiply the first equation by 3

3 × 3x + 2y = 7 ➡ 9x + 6y = 21 Now subtract second equation from first equation

9x + 6y - 9x - 6y = 21 - 21

0 = 0

The equation has infinitely many solutions meaning whatever value you write instead of x and y there will be solution.

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7x-3x+7=3(x+1)-9x<br> how many solutions are there?
Marat540 [252]
Distribute
7x-3x+3=3x+3-9x
Combine like terms
5x+3=-6x+3
Subtract the variables
3=11x+3
Subtract the numbers
0=11x
Divide
0=x
6 0
3 years ago
Explain why the terms of the polynomial y2 + 7 are said to be relatively prime.
Georgia [21]

Answer:

The correct answer is because the alternative terms are prime and composite.

Step-by-step explanation:

The given polynomial is y^{2} + 7.

The value of the polynomial when y = 0 is 7.

The value of the polynomial when y = 1 is 8.

The value of the polynomial when y = 2 is 11.

The value of the polynomial when y = 3 is 16.

The value of the polynomial when y = 4 is 23.

The value of the polynomial when y = 5 is 32.

The value of the polynomial when y = 6 is 43.

And so on. Thus the value of the polynomial at alternate values of y are prime.  Thus this is why the polynomial is said to be relatively prime.

8 0
3 years ago
Brandon bought 14 2/5 pounds of clay to build a volcano for his science project. He used 10 1/2 pounds of clay on his project. H
Nostrana [21]

Answer:

3 9/10 or 3.9 as decimal

Step-by-step explanation:

just subtract

6 0
3 years ago
Read 2 more answers
Write two expressions where the solution is 28
kvv77 [185]
16 + 12

Another one would be...

10 + 18
3 0
3 years ago
The midpoint of AB
siniylev [52]
This is step by step i think this is correct

6 0
3 years ago
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