Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x2 – 6 = x

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500