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The height of the tide in the Bay of Fundy, relative to a pier, varies from a low of 4.5 m
at 02:08 AM to a high of 17.3 m at 08:21 AM
a.) Write a sinusoid to model the situation
b.) Determine the height of the tide relative to the pier at 11:30 AM.
Give your answer to the nearest 0.1 m.
c.) A boat needs a depth of at least 12 m to dock at the pier. Use a graphical approach
to determine when the boat is able to dock and when it must leave, during the course of
this day

cheater

step-by-step explanation:

i got 10.28 but that rounds up to 10.3

the answer is 1030 it's very simple math.

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.