Subtract.-18 - (-3)
A. 15
B. 21
C. -15
D. -21
Answer: C
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Identify the name given to the fair voting attribute described below. If candidate A wins an election, then candidate A will also win the election if the only change in the voters' preferences is that supporters of a different candidate change their votes to support candidate A.
a. Majority criterion b. Monotonicity criterion c. Condorcet criterion d. Independence of irrelevant alternatives
Write the system of equations associated with the augmented matrix. Do not solve.
A. 
B. 
C. 
D. 
Solve the problem.A toy rocket is shot vertically upward from the ground. Its distance in feet from the ground in t seconds is given by 
. At what time(s) will the ball be 
from the ground?
A. 12.5 sec B. 6.3 sec C. 1.2 and 11.3 sec D. 194.0 and 206.0 sec