Two similar triangles are shown on the coordinate grid: Which set of transformations has been performed on triangle PQR to form triangle P′Q′R′?

Dilation by a scale factor of fraction 1 over 2 followed by reflection about the x-axis

Dilation by a scale factor of 2 followed by reflection about the y-axis

Dilation by a scale factor of fraction 1 over 2 followed by reflection about the y-axis

Dilation by a scale factor of 2 followed by reflection about the x-axis

The sum of two numbers is 86, and their difference is 20. find the two numbers

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.

If f(x) = 2x + 8 and g(x) = x4, what is (gº)?