Provide an appropriate response. Is the number 12.3 rational?
A. Yes
B. No
Answer: A
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Determine whether the study involves selection bias, participation bias, both selection bias and participation bias, or neither.As voters left various polls across the city, every tenth voter at each polling place was asked who they had chosen to be the next mayor.
A. No Bias B. Participation Bias and Selection Bias C. Selection Bias D. Participation Bias
Tell whether the angle is acute, right, obtuse, or straight.
A. Acute B. Straight C. Right D. Obtuse
When plotting curves, standard practice requires that the independent variable is plotted on which axis?
a. x-axis
b. y-axis
c. Doesn't make any difference
Solve the problem.The cost for labor associated with fixing a washing machine is computed as follows: There is a fixed charge of $25 for the repairman to come to the house, to which a charge of $20 per hour is added. Find an equation that can be used to determine the labor cost, C, of a repair that takes x hours. Write the final answer in the form C = mx + b.
A. C = -20x + 25 B. C = 45x C. C = 25x + 20 D. C = 20x + 25