The graph of f(x) = x^6 – 2x^4 – 5x^2+ 6 is shown below. How many roots of f(x) are rational numbers? 1,2,4,6

Solve the equation x/4 - 5= -8 -27 -12 -7 12

(x-5)1/2+5=2 what is possible solution of this equation

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?