Find the product and simplify. Assume all variables represent nonnegative real numbers.-2
? 6
A. -84
B. -84
C. -12
D. -588
Answer: A
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Determine whether the line's slope is positive, negative, zero, or undefined.
A. undefined slope B. zero C. negative D. positive
Find a solution to the equation using the value given for x.y = 4x + 5; x = -3
A. (-3, 9) B. (-3, -7) C. (-3, -27) D. (-3, -19)
Identify the problem with the method used to obtain a random sample.A quality control manager would like to assess the quality of service provided by one of his customer service representatives. He would like to listen to a random sample of calls handled by the representative. He monitors the first 30 calls handled by the representative on a Monday morning.
A. The day Monday was not chosen at random. The manager should write each day of the week on a slip of paper, put the slips in a bag, mix them thoroughly, close his eyes and pick a slip from the bag. He should then monitor the first 30 calls handled by the representative on the day selected. B. The manager cannot pick a random sample because he is not objective. Someone other than the manager should select the calls to be monitored. C. The sample is biased. Calls handled at times other than Monday morning have no chance of being selected. The first 30 calls handled on a Monday morning might not be representative of all calls handled by the representative.. If the representative happened to be tired or in a bad mood on the Monday morning this would affect all calls in the sample.
Solve the problem. Round amounts to the nearest cent and percents to the nearest tenth of a percent.Cost = $138.24; Rate of markup based on cost = 59%. Find the markup and selling price.
A. Markup: $234.31 Selling price: $372.55 B. Markup: $59.00 Selling price: $197.24 C. Markup: $197.24 Selling price: $335.48 D. Markup: $81.56 Selling price: $219.80