8. A boat leaves port and sails in still water at 5.6 mph for 3.5 hours. The boat then turns at a 57 degree angle and sails at 4.9 mph for 4.25 hours.
a. If the boat turns and heads directly for port at 6 mph, how long will it take it to reach port?
b. At what angle will the boat have to turn to head directly back to port in part a?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice

What is perpendicular to y=-1/2x+11

Calculate the annual effective interest rate of a 12 % nominal annual interest rate compound monthly