The depth of the water at the end of a pier changes periodically along with the movement of tides. On a
particular day, low tides occur at 12:00 am and 12:30 pm, with a depth of 2.5 m, while high tides occur at
6:15 am and 6:45 pm, with a depth of 5.5 m. Let t = 0 be 12:00 am.
How many times during this day is the depth at the end of the pier equal to 4 meters?

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?