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DanielleElmas [232]
3 years ago
15

PLEASE HELP DUE SOON

Mathematics
1 answer:
Mazyrski [523]3 years ago
7 0

Answer:

A

Step-by-step explanation:

The lines cross or touch the X-Axis 4 times which means that there are 4 solutions.

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kenny6666 [7]

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The answer to the equation is: 4.648

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Y=-3x+9<br> y=-x-5 <br><br> what is the solution for the system of equations?
alexandr402 [8]

Our system of equations is:

y = -3x + 9

y = -x - 5


To solve this system of equations, we are going to use substitution. This means that we are going to substitute the second equation into the first equation since both are already solved for y in terms of x.


y = -3x + 9

-x - 5 = -3x + 9


Now, we must simplify by moving all of the constant terms to one side of the equation and all of the variable terms to the other side.


-x - 5 = -3x + 9

2x - 5 = 9

2x = 14


Finally, to undo the multiplication between the coefficient 2 and the variable x, we must divide both sides by 2 to get the variable x alone.


x = 7


Next, we must substitute in this value we have solved for x into one of the original equations to solve for the other variable, y.


y = -3x + 9

y = -3(7) + 9


To simplify, we must multiply through the parentheses and combine like terms by addition.


y = -21 + 9

y = -12


Therefore, your final answer is x = 7 and y = -12, or as an ordered pair (7, -12).


Hope this helps!

6 0
3 years ago
A dugout needs to reach at least 72 feet below ground level. This means it needs to be more than 4 1/2 times its current depth.
rjkz [21]

Answer:

The answer i got is this -16 2/3, which i think is greater than -16

6 0
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gtnhenbr [62]

Answer: 2

Step-by-step explanation:

The equation for slope is change in y / change in x, which is (-4-(-12))/(4-0) in this case. That is equal to 2.

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3 years ago
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