Which of the following represents dy/dx when y = e-2x sec (3x)? a. 3e -2x sec (3x) tan (3x) - 2xe-2x sec (3x) b. 3e -2x sec (3x) tan (3x) - 2e-2x sec (3x) c. 3e -2x sec (3x) tan (x) - 2xe-2x sec (3x)d. 3e -2x sec (3x) tan (x) - 2e-2x sec (3x)

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

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.