Determine which of the lines are perpendicular if any. explain

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.

What makes a trapezoid an isosceles trapezoid?