The mgf of a random variable x is e^3(e^t-1). find p[mean - standard deviation squared < x < 1/2( mean + standard deviation squared)], where mean and standard deviation squared are mean and variance of x

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Abaker makes 186 cookies. some are chocolate chip and some are oatmeal raisin, and both kinds are made with and without nuts, as shown in the table above. because they are more popular, the baker made 2/3 of the cookies chocolate chip. if a chocolate chip cookie is chosen at random, what is the probability that it will have nuts? a) 21/93 b) 21/62 c) 41/93 d) 21/41

For the equations below which statement is true ? -2x=14 6x=-42