The joint probability distribution of X and Y is given by:
f (x, y) = P(X = x, Y = y)
(a) Find the value of c that makes f(x, y) a valid joint probability density function.
(b) Find P(X > 2,Y < 1).
(c) Find P(X > Y).

Solve for x. −3/4(x+2)=6 enter your answer in the box

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?