Chapter 2: Problem 63
A. NO CHANGE B. One of these is C. One being D. One,
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Chapter 2: Problem 63
A. NO CHANGE B. One of these is C. One being D. One,
These are the key concepts you need to understand to accurately answer the question.
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If the value, to the nearest thousandth, of \(\cos \theta\) is \(-0.385,\) which of the following could be true about \(\theta ?\) \(\begin{array}{ll}{\text { A. }} & {0 \leq \theta<\frac{\pi}{6}} \\ {\text { B. }} & {\frac{\pi}{6} \leq \theta<\frac{\pi}{3}} \\ {\text { C. }} & {\frac{\pi}{3} \leq \theta<\frac{\pi}{2}} \\ {\text { D. }} & {\frac{\pi}{2} \leq \theta<\frac{2 \pi}{3}} \\ {\text { E. }} & {\frac{2 \pi}{3} \leq \theta \leq \pi}\end{array}\)
The trapezoid below is divided into 2 triangles and 1 rectangle. Lengths are given in inches. What is the combined area, in square inches, of the 2 shaded triangles? A. 4 B. 6 C. 9 D. 12 E. 18
How many prime numbers are there between 30 and 50\(?\) F. 4 G. 5 H. 6 J. 7 K. 8
The writer is considering deleting the following from the preceding sentence: marking the placement of the final section between the two freestanding legs of the St. Louis Gateway Arch If the writer were to delete this phrase, the essay would primarily lose: A. a minor detail in the essay's opening paragraph. B. an explanation of the term "topping-out ceremony." C. the writer's opinion about the significance of the topping-out ceremony. D. an indication of the topping-out ceremony's importance to the people of St. Louis.
The depth of a pond is 180 \(\mathrm{cm}\) and is being reduced by 1 \(\mathrm{cm}\) per week. The depth of a second pond is 160 \(\mathrm{cm}\) and is being reduced by \(\frac{1}{2} \mathrm{cm}\) per week. If the depths of both ponds continue to be reduced at these constant rates, in about how many weeks will the ponds have the same depth? F. 10 G. 20 H. 40 J. 80 K. 140
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