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Chapter 4: Problem 5
If \(18+d=12\), what is the value of \(5 d\) ? A) \(-30\) B) \(-18\) C) \(-6\) D) 6
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Which of the following is equivalent to \(2 x^2-6 x-8\) ? A) \(2(x-4)(x+1)\) B) \(3(x+4)(x-1)\) C) \(2(x-3)(x+2)\) D) \(3(x-4)(x-2)\)
Which of the following situations is most analogous to the recent swelling of the Long Valley Caldera? A) Many small tremors along a particular fault precede a large, magnitude 8 earthquake. B) A scientist discovers a new species of insect by chance while observing snakes in the Amazon rainforest. C) Bad road conditions cause a collision between two cars, and poor visibility contributes to a multi-car pile-up. D) A doctor is unable to give a definitive diagnosis to a patient after assessing symptoms typical of a particular disease.
A recent biological study performed on a large random sample of North American birds found that \(46 \%\) of birds' nests experienced full or partial nest predation, in which some type of predator raided the nest before the hatchlings had flown off. The margin of error for the study was \(3 \%\). Which of the following is the best interpretation of the margin of error for this study? A) The percentage of North American birds whose nests get raided by predators is likely somewhere between \(43 \%\) and \(49 \%\). B) There is a \(3 \%\) chance that the study's finding about nest predation for North American birds is incorrect. C) It is unlikely that fewer than \(43 \%\) of birds' nests will get raided this coming year. D) The research indicates that no more than \(49 \%\) of birds' nests will likely get raided by predators.
From the year 2005 to the year 2015, the production of corn in a certain state has increased by \(15 \%\). During the same interval, the production of wheat has fallen by \(40 \%\). If the state produced identical amounts of each crop in 2005, but it produced 161 million bushels of corn in 2015, how much wheat, in millions of bushels, was produced by the state in \(2015 ?\) A) 84 B) \(111.09\) C) \(233.33\) D) 350
A) NO CHANGE B) one, of the major industrial towns, C) one, of the major industrial towns D) one of the major industrial towns
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