66. sec 4x = 2
solve the multiple angle equation

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Prove that 16^4-2^13-4^5 is divisible by 11.

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?