There are 7 movies that Christine wants to see over winter break. She only has time to see 4 of the movies. How many different groups of 4 movies are possible, if the order in which they are seen is not important?

Determine whether the samples are independent or dependent. upper a data set includes the morning and evening temperature for the lasta data set includes the morning and evening temperature for the last 90 days.90 days.

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

Which expression is equivalent to -12(3x-3/4)