Each throw of an unfair 6-sided die lands on each of the odd numbers 1,3,5 with probability c and on each of the even numbers with probability 2c. (a) Find c. (b) Suppose the die is tossed. Let X equal 1 if the result is an even number, and let it be 0 otherwise. Let Y equal 1 if the result is a number greater than 3, and let Y be 0 otherwise. Find the joint probability mass function

idk

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x