Chapter 1: Problem 17
Universal Products has 78 employees. If twice as many women work for Universal as men, how many women work for Universal? A. 52 B. 42 C. 26 D. 16
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Evaluate \(3 x(x-2 a)^{-x}\), if \(x=-2\) and \(a=0.5\).
There are four basic types of chemical reactions, as shown in the table below. $$ \begin{array}{|c|c|} \hline \text { Reaction Type } & \text { General Example } \\ \hline \text { Combination } & \mathrm{A}+\mathrm{B} \rightarrow \mathrm{C} \\\ \hline \text { Decomposition } & \mathrm{C} \rightarrow \mathrm{A}+\mathrm{B} \\\ \hline \text { Single displacement } & \mathrm{A}+\mathrm{BC} \rightarrow \mathrm{B}+\mathrm{AC} \\ \hline \text { Double displacement } & \mathrm{AB}+\mathrm{CD} \rightarrow \mathrm{AC}+\mathrm{BD} \end{array} $$ The balanced chemical equation describing the reaction between hydrogen and fluorine is shown below. $$ \mathrm{H}_2+\mathrm{F}_2 \rightarrow 2 \mathrm{HF} $$ Which of the four basic types of chemical reactions is this? A. combination B. decomposition C. single displacement D. double displacement
AJ was prescribed an antibiotic that must be taken as one tablet every 8 hours. Following the instructions, he took the first tablet at 2 pm on Monday and took the last tablet three days later, on Thursday at 2 pm. How many tablets of antibiotic did AJ take?
In a study of bird migration, a researcher recorded on a certain day a total of 262 birds, consisting of 65 geese, 84 ducks, and 113 robins in the skies. Below, show a possible equation for calculating the probability that a random bird chosen from among these is NOT a duck. (For this practice test, write the numbers in the boxes below.) 65 84 113 262
Which quotation from the story supports the idea that Ingred’s relatives have had military experience? A. “Mr. Saxon, Egbert, and Athelstane had only just been demobilized, and had hardly yet settled down to civilian life.” B. “The six weeks by the sea seemed a kind of oasis between the anxious period of the war that was past and gone, and the new epoch that stretched ahead in the future.” C. “By the by, now the war’s over, and we’ve all got our own again, I suppose you’re going back to Rotherwood, aren’t you?” D. “To have her father and brothers safely back, and for the family to be together in the midst of such beautiful scenery, was sufficient for utter enjoyment.”
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