Select the correct answer. ΔABC underwent a sequence of rigid transformations to give ΔA′B′C′. Which transformations might have taken place?

A.
a reflection across the y-axis followed by a reflection across the x-axis

B.
a rotation 90° clockwise about the origin followed by a reflection across the x-axis

C.
a rotation 270° clockwise about the origin followed by a reflection across the x-axis

D.
a reflection across the x-axis followed by a reflection across the y-axis

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on