Which number is written in scientific notation? a)6*10^11 b)12*10^-8 c)0.2*10^5 d)8*7^2

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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