You roll a die, winning nothing if the number of spots is odd, $1 for a 2 or a 4, and $9 for a 6. Round your answers to 3 decimal places.

(a) Find the expected value and standard deviation of your prospective winnings. The expected value is _ , the standard deviation is _.

b) You play twice. Find the mean of your total winnings.

The mean is:

Acamper leaves camp on a kayak and travels 50 miles east on a river, then he ties his kayak to the bank and travels 20 miles north on a bicycle. this trip can be plotted on the coordinate plane, where the camp is the point (0, 0). the distant of the camper to the camp can be found using the distance formula. which other formula can he use? a) 502 - 202 b) 502 + 202 c) 502 - 202 d) 502 + 202

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

The table below shows the function f. determine the value of f(3) that will lead to an average rate of change of 19 over the interval [3, 5]. a. 32 b. -32 c. 25 d. -25