FIND THE MESURES OF THE ANGLES. FIND TWO. ANSWER CHOICES:
2 answers:
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Answer:
The water level is falling.
The initial level of water in the pool was 3,500 units
The water was 2,600 units high after 4 hours.
Step-by-step explanation:
The given function that models the water level is
where represents time in hours.
The function represents a straight line that has slope
Since the slope is negative, it means the water level is falling.
The initial level of water in the pool can found when we put into the function.
, hence the initial level is 3,500.
To determine the level of water in the pool after 14 hours, we put into the equation to get;
To determine the water level after 4 hours we put
Using trigonometric identities, and equality is reached, hence the equality is proved.
<h3>Which trigonometric identity are used to solve this question?</h3>These three identities are used:
.
.
Hence:
Equality is reached, hence the equality is proved.
More can be learned about trigonometric identities at brainly.com/question/24496175
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