55. The Electronic Depot received 108 mp3 players, 12 of which are defective. In how many dif- ferent ways can 6 players be selected for display such that:
a. none are defective?
b. half are defective?
c. all are defective?

43

step-by-step explanation:

x

step-by-step explanation:

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .