Let X be a random variable with an exponential distribution of | n-4 | +2 a. Write the formulas to determine the probability density function and the probability function of X b. Calculate P(X > E(X))​

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Is a positive integer raised to a negative power always positive

Three times the sum of a number and seven is negative thirty-six. what is the number?