Find the value of k so that the equation will have exactly one rational solution.4x2 + kx + 9 = 0
A. 12 or -12
B. 6 or -6
C. 12i or -12i
D. None
Answer: A
Mathematics
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Even with most of the problem missing, it is possible to tell whether a suggested answer is reasonable. Determine whether the answer given is reasonable. If it is unreasonable, move the decimal point or insert a decimal point to make the answer reasonable.How long did it take her to walk a mile?1.9 minutes
A. Unreasonable, should be 1900 minutes B. Unreasonable, should be 19 minutes C. Unreasonable, should be 190 minutes D. Reasonable
Mathematics
Solve the equation.y2 + 10y = -25
A. -5, -5 B. 5, 5 C. 5, -5 D. -5, 5
Mathematics
Solve and check your answer.x + 2 = 7
A. 5 B. 4 C. 7 D. 6
Mathematics
Solve the inequality and graph the solution on the real number line.
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A. 
B.
C.
D.
E.
Mathematics