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kodGreya [7K]
3 years ago
8

PLEASE HELP!!! I NEED THE ANSWER SOON :)

Mathematics
1 answer:
densk [106]3 years ago
4 0
y=2x \newline y= x^{2} -3

Substitue 2x for y in the second equation:

2x= x^{2} -3

Rearrange to a x^{2} +bx+c=0 form:

x^{2} -2x-3=0

Factor:

(x-3)(x+1)=0

Zeros are x=3 and x=-1

To find y-coordinates of pts of intersection, plug these x-values into first equation to get y=-2 and y=6
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Step-by-step explanation:

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A blue container weighs 4 x 103
NemiM [27]

Answer:

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8 0
2 years ago
6x-5y = 15<br><br> x=y+3<br><br> x=<br><br> y=
Zina [86]

Answer:  x = 0  y = –3

Step-by-step explanation:

We can solve this system by substitution.

use the second equation as a value for x.

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6(y + 3) - 5y = 15  Distribute 6 × parentheses

6y + 18 - 5y = 15 combine like terms

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Use this value for y in either equation to solve for x

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x = 0

OR in he second equation,

x = -3 + 3  

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2 years ago
Which of the following is equivalent to 3^(-8)3^(4)<br> 3^-32<br> 3^-12<br> 3^-2<br> 3^-4
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Answer:

goodluck btw

Step-by-step explanation:

i just need points so thats why i am answering

8 0
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