Solve the problem.
-How many 3-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 if the first digitcannot be 0? Repeated digits are allowed.
A) 900
B) 504
C) 810
D) 729
Correct Answer:
Verified
Q21: Solve the problem.
-In how many ways can
Q22: Solve the problem.
-A man has 7 shirts
Q23: Find the value of the permutation.
-P(5, 1)
A)5
B)120
C)2.5
D)48
Q24: Solve the problem.
-How many different 5-letter codes
Q25: Find the value of the permutation.
-P(5, 1)
A)5
B)120
C)1
D)24
Q27: Find the value of the permutation.
-P(4, 0)
A)1
B)24
C)2
D)48
Q28: Solve the problem.
-9 different books are to
Q29: Find the value of the permutation.
-P(9, 9)
A)362,880
B)1
C)181,440
D)2
Q30: Solve the problem.
-How many different license plates
Q31: Solve the problem.
-How many 7-symbol codes can
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