Use a graphing utility to solve the system of linear equations and give the solution of the system.
A. 
x = 
, y = - 
, z = 9
B. 
x = 
, y = - 
, z = 9
C. 
x = 1, y = 5, z = 9
D. 
x = 9, y = 5, z = 1
Answer: C
Mathematics
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Solve the system.
+ 
= 
- 
= - 
A. 
B. {(-5, 7)}
C. {(-7, 5)}
D. {(5, -7)}
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Find the common ratio for the geometric sequence.
, 
, 
, 
A. 
B. Not geometric
C. 2
D. 2
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Use the addition rule to solve the problem.If P(A) = 0.6, P(B) = 0.5, and P(A ? B) = 0.9, then what is P(A ? B)?
A. 0.7 B. 0.1 C. 0.2 D. 1.8
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Use the properties of logarithms to find the value of the expression.Let logb A = 3 and logb B = -4. Find logb AB.
A. -12 B. -1 C. 7 D. 12
Mathematics