Simplify. Be sure to rationalize all denominators. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 1
Answer: C
Mathematics
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A study asked 54 adults if they had taken art, biology, or cooking in school. According to the Venn diagram below, how many had taken
n(A ? C)
A. 18 B. 37 C. 10 D. 2
Mathematics
Determine whether the given lines are parallel, perpendicular, or neither.y = 5x + 3y = -5x + 1
A. Parallel B. Perpendicular C. Neither
Mathematics
Rewrite the statement so the inequality symbol points in the opposite direction.8.43 ? 6.93
A. 8.43 ? 6.93 B. 6.93 ? 8.43 C. 6.93 ? 8.43 D. 8.43 < 6.93
Mathematics
Solve the problem.A certain noise measures 86 decibels. If the intensity is multiplied by 10, how many decibels will the new noise measure? 
A. 96 decibels B. 86 decibels C. 860 decibels D. 87 decibels
Mathematics