Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1200 hours and a mean life span of 18,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 16,800 hours. round your answer to four decimal places.

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true

Which graph shows the solution to the system of linear inequalities? y-4t< 4 y

What is the missing justification in the proof of the pythagorean identity below, sin^2x+cos^2x=1, using a right triangle?