kim486

The OAs are A and D...for number 1 what is wrong with C?

D and B...can u explain why pls??

Many environmentalists believe that the widespread planting of trees, along with the conversation of existing forests, would be one of the surest, easiest and least expensive ways to begin to halt or even to reverse the buildup of carbon dioixde in the air. A.. B. one of the most sure, easy and least expensive ways to begin a halt or even reverse C.one of the surest, easiest and least expensive ways that would begin halting or even reversing D. a most sure, easy and inexpensive way beginning the halting and reversing of E the most sure, easist and inexpensive way that would begin halting or even reversing ==> I couldn't decide between A (correct) and C..isn't "that" okay bc it refers to "ways"? Turkey's economy has grown prodigiously over the past 10 years, averaging an annual increase each year that is about 8%- one of the highest growth rates in the world. A.. B. with an annual average each year which is about 8% C. 8% is what it averages out to each year D. with an average annual increase of about 8% E. the average of the annual increase each year is about 8%

if x is a positive integer, is( x^2)-1 divisible by 3? (1) x is even, (2) x is divisible by 3 if x and y are integers, does x=y? (1) xy = y^2 (2) x^2 =y^2 can someone pls help me out :)

Until now, only injectable vaccines against influenza have been available. Parents are reluctant to subject children to the pain of injections, but adults, who are at risk of seirous complications of influenza, are commonly vaccinated. A new influenza vaccine, administered painlessly in a nasal spary, is effect for children. However, since children seldom develop serious complications from influenza, no significant public health benefit would result from widespread vaccination of children using the nasal spray. Which of the following is an assumption on which the argument depends? A. Any person who has received the injectable vaccine can safely receive the nasal spray vaccine as well. B. The new vaccine uses the same mechnaism to ward off influenza as injectable vaccines do. C. The injectable vaccine is affordable for all adults. D. Adults do not contract influenza primarily from children who have influenza. E. The nasal spray vaccine is most effective when administred to adults. ==> I guess D, which is right, but not sure why...i tried using the negation test..hmm Yorco and Zortech are 2 corporations that employ large numbers of full-time workers who are paid by the hour. Publicly available records indicate that Yorco employs roughly the same number of such hourly wage workers as Zortech does but spends a far highter total sum per year on wages for such workers. Therefore, hourly wages must be higher on average at Yorco than at Zortech, since ____. A. Zortech spends a higher total sum per year than Yorco does to provide its hourly wage workers with benefits other than wages. B. the work performed by hourly wage workers at Zortech does not require a significantly higher level of skill than the work performed by hourly wage workers at Yorco does. C. The proportion of all company employees who are hourly wage workers is significantly greater at Yorco than it is at Zortech. D. Overtime work, which is paid at a substantially higher rate than work done during the regular work week, is rare at both Yorco and Zortech. E. the highest hourly wages paid at Yorco are higher than the highest hourly wages paid at Zortech. I chose E, but the answer is D. E sounds right!

The concentration of a certain chemical in a full water tank depends on the depth of the water. At a depth that is x feet below the top of the tank, the concentrationis 3 + {4/(square root (5-x)} parts per million, where 0 A. 2.4 B. 2.5 C. 2.8 D.3.0 E. 3.2 How are you supposed to solve this pls? :rolleyes:

Jaime earned enough money by selling seashells at 25 cents to buy several used paper back books at 55 cents each. If he spent all of the money he earned selling seashells to buy the books what is the least number of seashells he could have sold A 5 B 11 C 17 D 25 E 30 The answer is B..but how are u supposed to solve this?? In a certain animal population, for each of the first 3 months of life, the probabilty than an animal will die during that month is 1/10. For a group of 200 newborn memers of the population, approx. how many would be expected to survive the first 3 months of life? A 140 B 146 C 152 D 162 E 170