Tasmanian automobile license plates consist of four capital letters (A through Z) followed by three digits (0 through 9).How many Tasmanian license plates have no repeated symbols (different letters and different digits)?
A. 
× 
B. (264 - 1) × (103 - 1)
C. 257
D. 
× 
E. none of these
Answer: D
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Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
A. 
B. 
C. 
D. 
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Find zw or 
as specified. Leave your answer in polar form.z = 8
w = 3
Find 
.
A. 5
B. 
C. 5
D. 
Classify the number as one or more of the following: natural number, whole number, integer, rational number, or real number.834 (Number of students in the school)
A. Natural, integer, rational, and real B. Natural, whole, integer, rational, and real C. Whole, integer, rational, and real D. Rational and real