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Murljashka [212]
3 years ago
14

Explain your answer !! Have a nice day Will give braisnlt

Mathematics
2 answers:
yan [13]3 years ago
8 0

Answer: x=3, y=4

Step-by-step explanation:

We are going to use the elimination method to solve this since the x values have inverse of each other. We are going to add the 2nd equation to the 1st and we will get: y=-4 then plug y=-4 into one of the equations, then solve for x.   4(x)+5(-4)=-8, 4x-20=-8, 4x=12,  x=3. So x=3, y=4

nikdorinn [45]3 years ago
3 0

Answer: x=3, y=-4

Step-by-step explanation:

First, get either the x or the y variable by itself using one of the given equations:

-4x-4y=4

-4y=4+4x

y=-(4+4x)/4

y=-1-x

Then plug this into all the y variable in the other equation to find x:

4x+5(-1-x)=-8

4x-5-5x=-8

-1x-5=-8

-x=-3

x=3

Then plug this into ever x of one of the equations to find y:

4(3)+5y=-8

12+5y=-8

5y=-20

y=-4

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Steps 3 and 4 are incorrect because
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Explanation:
Let us evaluate Talia's steps.

Step 1: Select (2, 5) as a point on the line.
            CORRECT

Step 2: Select another point (1, 3) on the line.
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Step 3: Count units to the right and count units up, to determine the slope.
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Step 4: Substitute obtained values in the point-slope form.
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3 years ago
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4 years ago
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Viktor [21]

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Q 16. The energy is 308.7 J.

Q 17. The energy is 896000 J.

Step-by-step explanation:

Q 16. Given,

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<u>Answer:</u>

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