首页
登录
职称英语
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img] [br] DIn this question, you are
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img] [br] DIn this question, you are
游客
2025-02-24
10
管理
问题
[br]
选项
答案
D
解析
In this question, you are given that(x + 3)(y - 4)= 0, and you are asked to compare the product xy with -12. Since(x + 3)(y — 4)= 0 and the product of two numbers can equal 0 only if at least one of the numbers in the product equals 0, you can conclude that x = -3 or y = 4, or both.
Consider the case x = — 3. When x = -3, you can choose any number as the value of y and the equation(x + 3)(y - 4)= 0 will be satisfied. Depending on the particular value of y you choose, the product xy may be greater than, less than, or equal to -12. For example, if y = 1, then xy = -3 is greater than -12; and if y = 10, then xy = -30 is less than -12.
Since different examples for the value of y yield different relationships between Quantities A and B, the relationship cannot be determined from the information given. The correct answer is Choice D.
转载请注明原文地址:https://tihaiku.com/zcyy/3970289.html
相关试题推荐
If[img]2014m9x/ct_egreqm_egreqjs_0069_20148[/img],whichofthefollowingcould
[img]2014m9x/ct_egreqm_egreqjs_0067_20148[/img]Inthefigureabove,linekisp
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img][br]CInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img][br]DInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img][br]CInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img][br]BInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0083_20148[/img][br]DInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0056_20148[/img][br]CInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0056_20148[/img][br]AInthisquestion,youare
[img]2014m9x/ct_egreqm_egreqbj_0056_20148[/img][br]BInthisquestion,youare
随机试题
NewresearchshowsthatcleanersaresomeofthehappiestworkersinBritain
WelcometotheChineseConsulate-GeneralinMelbourneforthe"ChineseCulture
下列在X线片上不能够辨认的是:A.骨膜 B.骨松质 C.骨皮质 D.骨性关
在日常生活活动训练中,将复杂的动作分解,让患者记住每一活动的各个步骤,以指导动作
患者,男,56岁。类风湿性关节炎10年,出现关节肿大,僵硬冷痛,畏寒,四肢厥冷,
对于药物有效期的概念叙述正确的是A、药物的含量降解为原含量的50%所需要的时间
“医乃至精至微之事”所蕴含的医疗卫生职业的内在要求是()A.严谨求实,精益
以下不属于人力资源特点的是()。A:时间性 B:主观能动性 C:消费性
涉及核苷酸数目变化的DNA损伤形式是A.DNA(单链)断链 B.链间交联
出口货物的申报期限为货物运抵海关监管区()、装货的24小时()。 A.前;
最新回复
(
0
)