Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = - 
, y = 
; 
B. x = 
, y = - 
; 
C. x = 
, y = - 
; 
D. x = 
, y = 
; 
Answer: C
Mathematics
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Simplify the expression. ? 3(9 - 4) ?
A. 15 B. 14 C. 11 D. 17 E. 18
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A solution contains 0.25 liters of sulfuric acid. If this represents 10% of the total amount, find the total amount.
A. 5 liters B. 4.5 liters C. 3.5 liters D. 6 liters E. 2.5 liters
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Find the first four terms of the binomial series for the given function.(1 - 7x)1/2
A. 1 - 
x - 
x2 - 
x3
B. 1 - 
x + 
x2 - 
x3
C. 1 + 
x + 
x2 - 
x3
D. 1 - 
x - 
x2 - 
x3
Mathematics
Solve the system of linear equations.6x + 9y = -18-2x - 7y = 6
A. No solution B. (-3, 0) C. (-3, 1) D. (-4, 1)
Mathematics