Astudent is shown the velocity-time graphs for two objects and is asked to decide which object is moving faster. the student responds:
“b is faster because it has the sleeper slope."
what, if anything, is wrong with the student's statement? if something is wrong, explain the error and how to correct it. if the statement is correct, explain why.

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.