4) ABCD is a rectangle. A is the point ( 0 , 1 ) and C is the point ( 0 , 6 ). The equation of the straight line through A and B is y = 2x + 1 a) Find the equation of the straight line through D and C.

b) Find the equation of the straight line through B and C

5) The point P has coordinates (2,1) and the point Q has coordinates ( -2 , -1 ). Find the equation of the perpendicular bisector of PQ

15/16 as a decimal rounded to the nearest hundredth

Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −