Answer:
, 
Step-by-step explanation:
This complex expression is computed from the De Moivre expression:

Given that resultant expression is entirely real, the expression is simplified into this form:


The angle is 0 radians.
Answer:
a) P(X = 75) = 0.30
(b) P(X ≤ 75)
= 0.2 + 0.4 + 0.3 = 0.90
(c) P(X > 50).
= 0.3 + 0.1 = 0.40
(d) P(X < 100)
= 0.2 + 0.4 + 0.3 = 0.90
(e) parts b, c & d are CDF
Answer:
C. 10x^2
Step-by-step explanation:
Step-by-step explanation:
x = how many games won last year
x - 1 = how many games won each year
Answer:
y= -4x+1
Step-by-step explanation:
If you want to write this equation in slope intercept form, you need to find the y-intercept. Here is your current equation y= -4x + b. Then, substitute the x and y for the coordinate. Now, it should look like this: 9= -4(-2) + b. Multiply -4 and -2 to get 8. Now, this is your equation: 9= 8 + b. Then, subtract 8 from both sides to get your final answer, 1=b. Now that you have your y-intercept, go back to your original equation and fill in 1 for b. This is your final equation: y= -4x+1. Hope this helped!