Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart rate, R, in beats per minute,
1 answer:
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Translating the words into formula, we have
In fact, we have that the pay rate is the total payment divided by the number of hours worked.
We can solve this formula for w in two steps: starting from the formula above, multiply both sides by w:
And then divide both sides by r:
Answer: C.
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Explanation:
The x intercept always occurs when y = 0.
Use the unit circle to determine that when
So if , then we have
which shows us that is the location of one of the infinitely many x intercepts for this function.