Use dimensional analysis to convert the unit of length.2.75 tons to pounds
A. 0.01375 lb
B. 5500 lb
C. 0.001375 lb
D. 550 lb
Answer: B
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Use limits to find the derivative function f' for the given function f. Then evaluate f'(a) for the given values of a.f(x) = 2x3 - 4x; a = -2, 3
A. f'(x) = 6x2-4; f'(-2) = 20, f'(3) = 50 B. f'(x) = 3x2-4x; f'(-2) = 4, f'(3) = 15 C. f'(x) = 3x2-4x; f'(-2) = 20, f'(3) = 15 D. f'(x) = 6x2-4; f'(-2) = -28, f'(3) = 50
Solve by addition or substitution.-4x + 2y = 34x - 2y = 3
A. 
B. 
C. {(r, s)|-4r + 2s = 3}
D. ?
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Express the rational expression in lowest terms.
A. Already in lowest terms
B. 1
C. -1
D. 