Answer:
(C)
Step-by-step explanation:
Given the distance, d(t) of a particle moving in a straight line at any time t is:
To find an expression for the instantaneous velocity v(t) of the particle at any given point in time, we take the derivative of d(t).
The correct option is C.
Answer:
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Step-by-step explanation:
Represent the probability that a graduate finds a job with p
Required
Determine the probability that at least 1 of 7 gets a job.
In probability:
So, we calculate the probability that none of the 7 gets a job.
Represent the probability that a graduate will not get a job with q.
Represent as decimal
The probability that none of the 7 will get a job is
i.e.
So, we have:
Substitute 0.45 for q
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Answer:
what......................
If you have some knowledge of complex numbers: This follows pretty much immediately from Euler's formula and DeMoivre's theorem,
(Euler)
(DeMoivre)
so that is the imaginary part of the expanded left hand side.
If that's unfamiliar to you, you can make use of several identities to expand :
(double angle sine)
(double angle sine and cosine)
(Pythagorean)