Solve the equation. Express radicals in simplest form.
x2 + 
x - 
= 0
A. {-1}
B. 
C. 
D. ?
Answer: B
Mathematics
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Sketch the surface z = f(x,y).f(x, y) = 4x2 + 4y2 + 2
A. 
B. 
C. 
D. 
Mathematics
Express the result of the addition as a Hindu-Arabic numeral in expanded form.
A. (4 × 103) + (4 × 102) + (9 × 101) + (7 × 1) B. (4 × 103) + (5 × 102) + (0 × 101) + (7 × 1) C. (4 × 104) + (5 × 103) + (0 × 102) + (7 × 101) D. (4 × 104) + (4 × 103) + (9 × 102) + (7 × 101)
Mathematics
Divide as indicated.
A. x - 8 B. x3 - 8 C. x2 + 2 D. x + 2
Mathematics
Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Mathematics