If u and v are positive constants, find all critical points of f(t)=uet+ve−t. enclose arguments of functions, numerators, and denominators in parentheses. for example, sin(2x) or (a−b)/(1+n). t= equation editor common ω matrix ab ab ab acb π a‾√ a‾√n |a| ∪ [infinity] sin(a) cos(a) tan(a) sec(a) csc(a) cot(a) sin−1(a) cos−1(a) tan−1(a) ddx ∫fdx ∫abfdx

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true