The temperature of a certain chemical substance varies sinusoidally with time. The highest temperature it reaches is 120° and the lowest temperature it reaches is 40° After 5 minutes, the high temperature was recorded and it takes 16 minutes to get back up to the
high temperature again. When will the temperature be 80° for the first time from t=0 minutes?
a 5 minutes
Ob. 1 minute
c. 13 minutes
d. 21 minutes

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.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Use the distance formula to find the distance between (-3,5) and (3,1)