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bulgar [2K]
3 years ago
10

What is -x-3y=-3 and 2x+3y=5 using elimination method?

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
6 0

Answer:(2,1/3)


Step-by-step explanation:

-x-3y=-3

2x+3y=5


_________First solve for x since y is 0. -3y+3y=0

1X = 2

1x/1= 2/1

X= 2

Now substitute your x answer into any equation to find y I used second equation

2x+3y= 5

2(2)+3y=5

4+3y=5

3y=5-4

3y=1

3y/3=1/3

Y=1/3



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What is the inverse of this function? f(x)=-1/2 square root of x+3, x > -3
yuradex [85]

The inverse function of f(x) = -\frac 12\sqrt{x + 3} isf^{-1}(x) = 4x^2- 3

<h3>How to determine the inverse function?</h3>

The function is given as:

f(x) = -\frac 12\sqrt{x + 3}

Rewrite as;

y = -\frac 12\sqrt{x + 3}

Swap the positions of x and y

x = -\frac 12\sqrt{y + 3}

Multiply through by -2

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Square both sides

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Subtract 3 from both sides

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Express as an inverse function

f^{-1}(x) = 4x^2- 3

Hence, the inverse function of f(x) = -\frac 12\sqrt{x + 3} isf^{-1}(x) = 4x^2- 3

Read more about inverse function at:

brainly.com/question/2541698

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2 years ago
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Approximate the values to the nearest whole number.

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Answer:

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Step-by-step explanation:

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