An ion channel defect that blocks action potentials in the t-tubules of skeletal muscle would cause this to happen.

(08.01 MC) Roger is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is even}, and let B = {the sum of the number cubes is divisible by 5}. List the outcomes in A ∪ B.

(08.06 LC) Carter wants to know if warming up will help runners sprint faster. Thirty track and field athletes volunteered to participate in his study. He randomly assigns 15 athletes to warm-up for 10 minutes. All 30 participants sprint the same distance. He calculates the mean for each group and determines that the mean for the warm-up group was 10.7 seconds, and the mean for the other group was 13.2 seconds. To test the difference of means he re-randomized the data 54 times, and the differences are plotted in the dot plot below. What can Carter conclude from his study?

(08.04 MC) The grades on the last history exam had a mean of 80%. Assume the population of grades on history exams is known to be distributed normally, with a standard deviation of 5%. Using the empirical rule, approximately what percent of students earned a score between 70% and 80%?

(05.02) Solve 4x + 3 = 9 for x using the change of base formula .

(05.02) Solve 5x − 4 = 7 for x using the change of base formula .

(Slope HC)A table with certain points is shown. x −3 0 −7 y 0 −1 4 Part A: Choose two points from the table and calculate the slope between them. Show all necessary work. (4 points) Part B: Choose two different points from the table and calculate the slope between them. Show all necessary work. (4 points)Part C: What do the slopes from parts A and B tell you about the relationship between the points? Explain. (4 points)

(05.05) The function f(x) = 467(5)x represents the growth of a ladybug population every year in a wooded area. Adrianne wants to manipulate the formula to an equivalent form that calculates every 3 months, not every year. Which function is correct for Adrianne’s purposes?

(05.05) Which of the following represents the graph of f(x) = 2x − 3?

(Slope MC)Superior Segway Tours gives sightseeing tours around Chicago, Illinois. It charges a one-time fee of $55, plus $15 per hour. What is the slope of this situation?