Convert 4307 rads / 1 second into inches/sec

Determine domain and range, largest open interval, and intervals which function is continuous.

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

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?