Which set of ordered pairs x y could represent a linear function of x
a (-2,8) (0,4) (2,3) (4,2)
b (1,2) (1,3) (1,4) (1,5)
c (-2,7) (0,12) (2,17) (4,22)
d (3,5) (4,7) (3,9) (5,11)

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

What is r i 4.5+10r=-6.5 with work pls