Arunning cheetah begins to slow down. for each meter the cheetah travels, its speed changes by −3.4−3.4 kilometers per hour. the cheetah travels a total of 21.5 meters. what is the total change in the cheetah's speed during this time?

a. 73.1

b. 71.9

c. 18.1

d. -18.1

e. -71.9

f. -73.1

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

For g(x) = 5x - 3 and h(x) = [tex]\sqrt{x}[/tex], find (g · h)(4)

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22