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Alexus [3.1K]
3 years ago
12

Solve the given system of equations. 2y=-x+9 and 3x-6y=-15

Mathematics
2 answers:
Sergio [31]3 years ago
8 0
Y=1 and x=7 because if you make the first equation into a x= equation, you can just substitute it for the second equation and solve it. 
jek_recluse [69]3 years ago
4 0
2y+x=9
-6y+3x=-15

6y+3x=17
-6y+3x=-15

6x=2

x=1/3
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so, only one

Step-by-step explanation:

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Read 2 more answers
Describe the end behavior of a 14th degree polynomial with a positive leading coefficient.
DiKsa [7]

<u><em>Answer:</em></u>

1)

f(x)→ ∞ when x→∞ or x→ -∞.

2)

when  x→ ∞ then f(x)→ -∞

        and when x→ -∞ then f(x)→ ∞

<u><em>Step-by-step explanation:</em></u>

<em>" The </em><em>end behavior</em><em> of a polynomial function is the behavior of the graph of as approaches positive infinity or negative infinity. The degree and the leading coefficient of a polynomial function determine the end behavior of the graph "</em>

1)

a 14th degree polynomial with a positive leading coefficient.

Let f(x) be the polynomial function.

Since the degree is an even number and also the leading coefficient is positive so when we put negative or positive infinity to the function i.e. we put x→∞ or x→ -∞ ; it will always lead the function to positive infinity

i.e. f(x)→ ∞ when x→∞ or x→ -∞.

2)

a 9th degree polynomial with a negative leading coefficient.

As the degree of the polynomial is odd and also the leading coefficient is negative.

Hence when x→ ∞ then f(x)→ -∞ since the odd power of x will take it to positive infinity but the negative sign of the leading coefficient will take it to negative infinity.

When x→ -∞ then f(x)→ ∞; since the odd power of x will take it to negative infinity but the negative sign of the leading coefficient will take it to positive infinity.

Hence, when  x→ ∞ then f(x)→ -∞

        and when x→ -∞ then f(x)→ ∞



8 0
3 years ago
NEED HELP ASAP . SERIOUS ANSWERS .
const2013 [10]
The second option is correct
8 0
3 years ago
What is equivalent to 2<br> x<br> 2<br> −<br> 7<br> x<br> −<br> 3<br> =<br> 0
kifflom [539]

Answer:

I'm confused with this, I dont understand what you are asking.

Step-by-step explanation:

2 is equivalent with a lot of things,

1+1

3-1

92-90

7×7-47

4÷2

the list goes on...

8 0
2 years ago
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