If jacob owns 12 books, how many different ways can he arrange 3 of these books on a single bookshelf

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees