Your classmate simplified the following rational expression and asked you if you got the same answer. Determine whether the answer below is correct. If it is not correct, simplify the expression. Show all of your work. Rational expression: (x^(2)-1) / (x^(2)4x-5) ÷ (2x^(2)+4x) / (6x^(2)-30x)

Your friend's (2x(x-1)(x+2)) / (6x(x-5)(x-5))

The friend's answer is incorrect.

The correct answer is:

Step-by-step explanation:

To divide by a fraction, multiply by its reciprocal.

Multiply the numerators together. Multiply the denominators together.

Factor every polynomial.

Divide the numerator and denominator by the common terms.

The friend's answer is incorrect.

The correct answer is:

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: