James correctly answered 85% of the 60 problems on his math test. how many problems did James answer correctly?
2 answers:
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Answer:
<em>Last option </em>
Step-by-step explanation:
The general sine function has the following form
Where A is the amplitude: half the vertical distance between the highest peak and the lowest peak of the wave.
is the period: time it takes the wave to complete a cycle.
k is the vertical displacement.
phase shift
We know that:
amplitude: 1; period: 2; phase shift: 3; vertical shift: 4
Thus:
Then the function is:
The answer is last option