On the unit circle the hypotenuse is always one so we can say:
sinα=y/1 and cosα=x/1 so
The point corresponding the the angle 600° is:
(cos600, sin600) which is approximately
(-1/2, -√(3/4)
Answer:
See explanation below
Step-by-step explanation:
In a binomial distribution of n trials the expected value is
E = np
where p is the probability of “success” and the standard deviation is
So, if the expected value is 80, then
80 = 200p
hence
p=2/5
The standard deviation would be
as a consequence it is not possible for a binomial distribution of 200 trials with expected value 80 to have a standard deviation of 20.3
Let the total number of tickets purchase be x.
Total cost = $7.5x
3x² - 2 - 12x - 15
Factor.
= 3 ( x + 1 ) ( x - 5 )
Answer:
Answer is: D. $40
Step-by-step explanation:
20+40=60
100-60=40