A person x inches tall has a pulse rate of y beats per minute, as given approximately by y = 588x -1/2 for 30 S x $ 75. What is the instantaneous rate of change of pulse rate for the following heights? (A) 30-inches (B) 71-inches ... What is the instantaneous rate of change of pulse rate for a 30 inch tall person? beats per minute per inch (Round to the nearest hundredth as needed.)An investor bought stock for $20,000. Fifteen years later, the stock was sold for $30,000. If interest is compounded continuously, what annual nominal rate of interest did the original $20,000 investment earn? The annual nominal rate of interest earned is%. (Round to two decimal places as needed.)