High tide occurs at intervals of 12.5 h. High tide measured 8.5 ft and low tide measured 2.5 ft. What is the amplitude of a cosine function modeling the depth of the water in feet as a function of time in hours?

the answer is a.

step-by-step explanation:

in three games of golf, alex shot two under par four times.

363 square inches

step-by-step explanation:

surface area of a pyramid is b + 1/2ph

b is the area of the base: 11 x 11 = 121

p is the perimeter of the base: 11 + 11 + 11 + 11 = 44

h is the height of the pyramid: 11

121 + 1/2(44)(11)

121 + 242

363

h is the x-coordinate of the vertex

step-by-step explanation:

we have

in this function

the point represent the vertex of the function

so

h is the x-coordinate of the vertex

k is the y-coordinate of the vertex