Use the quadratic formula to solve the equation.0.5x2 + 0.3x + 0.4 = 0
A. {
, 
}
B. {
, 
}
C. {
, 
}
D. {
, 
}
Answer: D
Mathematics
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Determine whether the equation is a linear equation in two variables.x2 = 2y
A. yes B. no
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Find the product.(3xy - 10)(9xy + 5)
A. 27x2y2 - 75xy - 75 B. 12x2y2 - 75xy - 50 C. 12x2y2 - 75xy - 75 D. 27x2y2 - 75xy - 50
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Solve the radical equation, and check all proposed solutions.
+ 8 = x + 4
A. {-4}
B. {8}
C. {2, 8}
D. 
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Write the expression as a single logarithm. Leave your answer in simplest form without negative or fractional exponents.loga x6 - 2 loga 
A. loga x7
B. loga(x6 - x)
C. 
D. loga x5
Mathematics