Select all the correct answers. If the measure of angle is 0 is 7pi/ 4, which statements are true? The measure of the reference angle is 45°
cos) 0)= -√2/2
tan(0)=-1
The measure of the reference angle is 30°.
sin(0) =-√2/2
The measure of the reference angle is 60°.​

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 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 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Solve the inequality and graph 6j - 7 < 5

Which of these tools or constructions is used to inscribe a hexagon inside a circle?