Solve the system of linear equations.
?
A. ?
B. ?
C. ?
D. inconsistent
E. ?
Answer: B
Mathematics
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Find the exact function value.cos-1(0)
A. 
B. 
C. 0
D. 
Mathematics
Simplify the expression. If any variables are present, assume that they are positive.
? 
A. -20
B. 12
C. -12
D. 20
Mathematics
Write standard form and identify a, b, and c.2x2 = 5x - 4
A. 2x2 + 5x - 4 = 0; a = 2, b = 5, c = -4 B. 2x2 - 5x + 4 = 0; a = 2, b = -5, c = 4 C. 2x2 + 5x + 4 = 0; a = 2, b = -5, c = -4 D. 2x2 - 5x = -4; a = 2, b = -5, c = -4
Mathematics
Write as a proportion.18 is to 24 as 6 is to 8.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics