A recent study on the wave patterns in Baler, Aurora took place. High tide is at 6:00 am with a height of 13 ft. The low tide was recorded at 3 ft at
6:00 PM. The wave pattern for the day followed a sinusoidal pattern with a
period of 24 hours, starting midnight.
(a) Sketch the graph of the wave heights.
(b) Which function (y = a sin b(x-c) + d ory a cos b(x - c) + d) will you
use to model this situation?
(c) What are the values of a, b, c, and d? Hint: a is the amplitude, period
c is the phase shift, and d is the mid height?
(d) What is the equation for your graph?
(e) How high is the wave at 12 noon?​

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

Ten times the square of a non-zero number is eqaul to ninety times the number