Four noncoplanar points define a space, but could they be used to form two intersecting planes? explain why or why not

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m

The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.