Can someone please tell the correct answer?
1 answer:
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Answer:
Problem 1) frequency: 160 heartbeats per minute, period= 0.00625 minutes (or 0.375 seconds)
Problem 2) Runner B has the smallest period
Problem 3) The sound propagates faster via a solid than via air, then the sound of the train will arrive faster via the rails.
Step-by-step explanation:
The frequency of the football player is 160 heartbeats per minute.
The period is (using the equation you showed above):
second problem:
Runner A does 200 loops in 60 minutes so his frequency is:
loops per minute
then the period is: 0.3 minutes (does one loop in 0.3 minutes)
the other runner does 200 loops in 65 minutes, so his frequency is:
loops per minute
then the period is:
Therefore runner B has the smaller period
Answer:
A.
Step-by-step explanation:
A rational-polynomic function is a function of the form:
(1)
There are three important remarks on this kind of function:
1) when function passes through the x-axis.
2) If , then the function
has a vertical asymptote.
3) The horizontal asymptote is a linear function of the form .
In accordance with the graph, the function has two vertical asymptotes at and
, numerator becomes zero for
and horizontal asymptote is
as grade of numerator is less than grade of denominator.
Hence, we conclude that rational function is <em>. </em>(Correct answer: A)
