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3 years ago

Solve the system of equations x=y-4

Mathematics

1 answer:

Illusion [34]3 years ago

5 0

Answer:

(-(23/3), -(11/3))

Step-by-step explanation:

x=y-4

2x-5y=3

=====

2x-5y=3

2(y-4)-5y=3 [Substitute (y-4) for x in the 2nd equation]

2y - 8 -5y = 3

-3y = 11

y = -(11/3)

y = -3 2/3

Use this in the 1st equation to find x:

x=y-4

x=-(11/3)-4

x = -(11/3)-(12/3)

x = -(23/3)

x = -7 2/3

See graph attached.

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Answer:

none

Step-by-step explanation:

The equations describe curves that do not intersect. There are no real solutions.

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<em>Additional comment</em>

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3 years ago

Consider the function f(x) = 3x2 + 7x + 2.

olga nikolaevna [1]

The discriminant:
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3 years ago

Read 2 more answers

What were the dimensions of the original photo?

never [62]

Answer:

11 inches by 11 inches

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.

Please have a look at the attached photo.

My answer:

Given the information:

The area of the reduced photo is 64 square inches
The equation $(x-3)^{2}$ = 64 where x is the the side measure of the original photo.

Let us solve for x by taking positive square root of both sides.\

$\sqrt{(x-3)^2}=\sqrt{64}\\\sqrt{(x-3)^2}=\sqrt{8^2}\\x-3=8$

<=> x = 11

So the dimensions of the original photo is 11 inches by 11 inches

We choose A

Hope it will find you well.

6 0

4 years ago

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2 years ago

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EleoNora [17]

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Learn more about the line of best fit here:

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3 years ago