Complete the square to determine the minimum or maximum value of the function defined by the expression x^2 + 4x+3

4. find the geometric mean of 4 and 12. 24 8

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

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?