Heather has a weighted coin that has a 60% chance of landing on heads each time it is flipped. She is going to flip the coin 5 times.
Which of the following would find the probability of Heather getting exactly 3 heads in 5 flips of her
weighted coin?
Choose 1
60
3
(0.60) (0.40)
© (1) (3)06 (2)04
(3) (0.60)*(0.40)
(5

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

m∠a is 90°

m∠b is 40°