What is the probability of picking a face card in a deck of
cards (that has 52 cards in it)? Write your answer as a
fraction and make sure it's fully reduced.

3/13

Step-by-step explanation:

There are 12 face cards in a deck of 52 cards. The fraction is 12/52 and you simplify so the answer is 3/13. (about 23 percent and face cards are kings, queens and jacks)

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50