Quinn had 20$. He spent 1/2 of his money on a baseball card, 1/4 of it a drink, and 1/8 of it on bubblegum. How much money does Quinn have left?

Is a deceasing linear model or an exponential decay model likely to be a better fit for the data about remembering? ?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?