There is a storm coming and andrew is securing his window by placing a wooden plank diagonally across it. the plank extends 1 foot beyond the window at both ends. he knows the window is 7 feet by 3 feet. how long should the plank be?
a. 2 square root 58 feet
b. 2 + square root 58 feet
c. 4 square roor 58 feet
d. 11 feet
e. none of the above

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Pleasseee important quick note: enter your answer and show all the steps that you use to solve this problem in the space provided. use the circle graph shown below to answer the question. a pie chart labeled favorite sports to watch is divided into three portions. football represents 42 percent, baseball represents 33 percent, and soccer represents 25 percent. if 210 people said football was their favorite sport to watch, how many people were surveyed?