A mischievous student wants to break into a computer file, which is password-protected. Assume that there are n= 100 passwords only one of which is correct, and that the student tries possible passwords in a random order. Let N be the number of trials required to break into the file. Determine the PMF of N if unsuccessful passwords are not eliminated from further selections. What is the expected number of trials E(N)?

answer: i feel you honey.

step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

if the angular bisector of an triangle bisects the opposite side, prove that the other two sides are equal.