Solve the problem.The letters of the word "PENCIL" are arranged in a random order.(a) How many different arrangements are possible?(b) How many start with a vowel?(c) How many start with "E" and end with "C"?
What will be an ideal response?
| (a) | 6! = 720 |
(c) 24
Mathematics
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Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) = n(A) - n(B)
A. True B. False
Mathematics
Find the sum, if it exists.0.27 + 0.0027 + 0.000027 + . . .
A. 
B. 
C. 
D. Does not exist
Mathematics
Find the distance d(P1, P2) between the points P1 and P2.P1 = (7, -6); P2 = (5, -2)
A. 12
B. 12
C. 2
D. 6
Mathematics
Simplify.
? 
A. 
B. 
C. 
D. 
Mathematics