ANSWER
Phase shift = right 30°, period = 60°
EXPLANATION
See attachment.
You use distributive property of multiplication
17) 388 in^2
18) 585 in^2
19) 960 ft^2
*fyi- ^2 means squared just in case you didn’t know also hope the picture helps!
To determine the probability that you get a blue marble and a black marble, let Event A = the probability to get a blue marble; and Event B = the probability to get a black marble.
Events A and B are independent, that's why the probability that they will both occur is:P(A and B) = P(A) x P(B)
P(A) = 30/50P(B) = 40/50
P(A and B) = (30/50) (40/50)P(A and B) = 1200/2500
P(A and B) = 0.48 or 48%
The probability that you get a blue and black marble is 48%.