Answer:
1. y = 10 - x
Step-by-step explanation:
Because he starts off with 10 dollars, and x is the amount he spends on an item, y is showing the change that he would get from paying with a 10 dollar bill, so it's what's left over from that 10 dollars.
The correct answer is that the variable does have a binomial distribution; P(success)=0.5; the number of trials is 5.
This is binomial because it has a fixed number of trials, the trials are independent of each other, the probability of success is constant from trial to trial, and there are only 2 outcomes.
Since success is getting an even number, and there are 3 even numbers out of 6, P(success)=3/6=0.5.
There are 5 trials because you are rolling the cube 5 times.
-4, -1, 1, 3, 3.9, 3.999,
answer:20 min. each
Step-by-step explanation:
2*60=120
120/6=20
F(3) = 18...true
f(-3) = 6...true
f(-22) = -56...false
f(-12) = -12...true
f(-1) = 11...false