Determine the points in the interval (0,2pi) at which the graph of the function below has a horizontal tangent line. f(x) = 18 cos x + 9 sin 2x
(x, y)= (__ , __) (smallest x-value)
(x, y)= (__ , __)
(x, y)= (__ , __) ( largest x-value)

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca

In a class of 77, there are 44 students who play soccer. if the teacher chooses 33 students, what is the probability that none of the three of them play soccer?

The weight of a small starbucks coffee is a normally distributed random variable with a mean of 340 grams and a standard deviation of 11 grams. find the weight that corresponds to each event. (use excel or appendix c to calculate the z-value. round your final answers to 2 decimal places.)highest 30 percent middle 70 percent highest 90 percent lowest 20 percent