Answer:
"changes the period to pi"
Step-by-step explanation:
f(t) = Sin(t),
Here, t is the period, by definition.
Multiply t by a number that is GREATER THAN 1, makes the period shorter and compressed.
Multiplying t by a number that is between 0 and 1 makes the period expanded.
For the first, if we multiply the period by a, the period becomes
Since the problem tells us to multiply by 2, we know the period becomes compressed and becomes :
Third answer choice is right.
Answer:
A) 0.1538
Step-by-step explanation:
4 members are going to be chosen:
M1 - M2 - M3 - M4
We have to find the probability that for each member, one without experience is chosen. There is no replacents.
Initially, we have 15 students, of which 10 have none experience. So the probability that M1 is chosen as a student with no experience is .
Then, there are 14 students, of which 9 have no experience. So the probability that M2 is chosen as a student with no experience is .
For the third member, there are 13 students, of which 8 have no experience. So the probability that M3 is chosen as a student with no experience is .
For the last member, there are 12 students, of which 7 have no experience. So the probability that M4 is chosen as a student with no experience is .
What is the probability that none of the members chosen for the team have any competition experience?
This is
The correct answer is:
A) 0.1538