What is 9x^2-18x-7÷(3x+1)

Mathematics

1 answer:

Phantasy [73]3 years ago

6 0

81x - 126x ÷ 3x + 1
45x / 3x + 1
15x / x + 1

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What is the image of (2,3)(2,3) after a reflection over the line y=-xy=−x?

saw5 [17]

Answer:

The image of (2,3) after a reflection over the given line will be: (-3,-2)

Step-by-step explanation:

The given point is (2,3)

Let (x,y) be a point, when it will be reflected over the line y=-x the coordinates are exchanged and are negated i.e. point (x,y) becomes (-y,-x)

When a point is reflected over a line the distance between the image of point and the line remains the same as the distance between original point and line.

Given point will become: (-3,-2)

Hence,

The image of (2,3) after a reflection over the given line will be: (-3,-2)

5 0

3 years ago

Read 2 more answers

Kali spent half of her weekly allowance on clothes. To earn more money her parents let her clean the gutters for $9. What is her

Ber [7]

So to find the answer to this, you have to consider that $\frac{1}{2} x + 9 = 13$ - half because half the pocket money (x) was spend on clothes, then plus 9 because that's how much extra she gained and 13 because that was the result of all the changes.

To solve this, first subtract 9 from both side, which leaves you with $\frac{1}{2} x = 4$ and $\frac{1}{2} x$ is the same as $\frac{1x}{2}$ , so to solve this, multiply both sides of the equation by two, resulting in $x = 8$ . SO from this we can conclude that the weekly allowance is $8