1/3 (1/2x -9) = 1/2 ( x + 18) 1/6x -3 = 1/2 +9
1/4x -3 =9
1/4x =12
x=48
What mistake was made in the problem ?

Use set buikder notation to represent the following set: {, -2, -1, 0}

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?