Evaluate the expression by hand.644/3
A. 256
B. 16,384
C. 1024
D. 4096
Answer: A
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Simplify the expression, if possible.-
A. -9 B. Not an integer C. 9 D. 18
Find the numerical value of the expression for 
and 
A. a) 
b) 
B. a) 
b) 
C. a) 
b) 
D. a) 
b) 
Find the dot product v ? w.v = 2i + 3j + k and w = 2i + 8j + 2k
A. -18 B. -30 C. 89 D. 30
Solve the problem.An airline charter service charges a fare per person of $250 plus $20 for each unsold seat. The airplane holds 175 passengers. Let x represent the number of unsold seats and write an expression for the total revenue R for a charter flight.
A. R(x) = (175 - x)(250 + 20x) or 43,750 + 3250x - 20x2 B. R(x) = 175(250 + 20x) or 43,750 + 3500x C. R(x) = x(250 + 20x) or 250x + 20x2 D. R(x) = (175 - x)(250 + 20x) or 43,750 + 3500x - 20x2