Answer and explanation:
Given : Let A = {1, 2, 3, 4, 5}, let B = {1,4,5,7,8,9}, and let C = {2, 4, 6, 7,9}.
To find : Determine each of the following,
a)
b)
c)
d)
Solution :
The union of two sets is a new set that contains all of the elements that are in at least one of the two sets.
The intersection of two sets is a new set that contains all of the elements that are in both sets.
a)
Then,
b)
c)
d)
Answer:
option B
Step-by-step explanation:
Given,
mean result (μ) = 65
standard deviation (σ)= 15
probability that student will score between 50 and 80
=
=
=
= P(Z < 1) - P(Z < -1)
Using z table,
= 0.8413 - 0.1587
= 0.6826
the correct answer is option B
Answer: See explanation
Step-by-step explanation:
You have to remeber that x to the power of r/q is the same thing as the qth root of x to the power of r.
For the second one, you would have the cubic root of 2 to the power of 2, or 4. So, your answer would be .
For the third one, you would have the square root of 3 to the power of 3, or 27. So, your answer would be .
For the fourth one, you would have the cubic root of 3 to the power of 1, or 3. So, your answer would be .
Hope this helps! :)