Solve the equation.
- 4 = 0
A. 
B. 
C. 
D. 
Answer: C
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Determine if the given vectors are orthogonal, parallel, or neither.v = i + 
j, w = i - 3j
A. Orthogonal B. Parallel C. Neither
Factor the sum or difference of two cubes completely.x9 + y3
A. (x3 - y )(x6 - x3y + y6) B. (x3 + y )(x2 - x3y + y2) C. (x3 - y )(x6 + x3y + y6) D. (x3 + y )(x6 + x3y + y6)
Solve by the quadratic formula.6k2 - 53k - 9 = 0
A. 
B. 
C. {-6, 9}
D. 
Solve the problem.A survey of 2672 credit card users indicated that 1204 had bought books online, 1235 had bought music online, 415 had bought pet supplies online, 96 had bought both books and music, 210 had bought both books and pet supplies, 140 had bought both music and pet supplies, and 74 had bought all three. How many credit card users did not buy any of the three? How many bought either books or pet supplies but not music?
A. 264; 1111 B. 190; 1111 C. 190; 1247 D. 190; 1185