Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.9 - 2x2 = 5x + 3
A. one rational solution
B. two nonreal complex solutions
C. two rational solutions
D. two irrational solutions
Answer: D
Mathematics
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Sketch the surface z = f(x,y).f(x, y) = x2
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Mathematics
Translate to an equation, then solve.The product of negative three and a number is twelve.
A. -4n = 3, n = 4 B. -3n = 12, n = 4 C. -3n = 12, n = -4 D. -3 + n = 12, n = 15
Mathematics
Write the expression as one term. Evaluate if possible.log 18 - log 6
A. 12 B. 3 C. log 3 D. log 12
Mathematics
Perform the matrix row operation and write the new matrix.
-2R1 + R2
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B. 
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Mathematics