Use the discriminant to determine the number and type of solutions for the given equation.6 + 5x2 = 4x
A. two imaginary solutions
B. one (repeated) real rational solution
C. two real irrational solutions
D. two real rational solutions
Answer: A
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Write the set in set-builder notation.{-3, -1, 1, 3, 5, ...}
A. {
x is an odd integer greater than -4}
B. {
x is an odd integer}
C. {
x is an odd integer between -4 and 6}
D. {
x is an integer greater than -4}
Provide an appropriate response.Before fractions may be added or subtracted, they must all have the same:
A. denominator B. dividend C. numerator D. divisor
Perform the matrix operation.Given C = 
and D = 
, find C - 2D.
A. 
B. 
C. 
D. 
Solve the problem.The function f models the population of Country X from 1991 to 1998. The graphs of f and the horizontal line y = 805 are shown in the figure. Use the graphs to determine the x-values that satisfy (i) the inequality 
and (ii) 
Express your answers symbolically. 
A. {x|x = 1994}; {x|x ? 1994} B. {x|x = 1994}; {x|x > 1994} C. {x|x ? 1994}; {x|x > 1994} D. {x|x > 1994}; {x|x ? 1994}