首页
登录
职称英语
If -7[img]2014m5x/ct_egreqj_egreqjs_0024_20132[/img]x[img]2014m5x/ct_egreqj_egre
If -7[img]2014m5x/ct_egreqj_egreqjs_0024_20132[/img]x[img]2014m5x/ct_egreqj_egre
游客
2025-02-24
7
管理
问题
If -7
x
5 and -3
y
4, what is the greatest possible value of(y-x)(x+y)?
选项
答案
99
解析
The correct answer is 99. Because you are looking for the greatest value of(y- x)(x + y), your goal is to make x + y as big as possible and y- x as big as possible. Therefore, from the range of values given, choose x= 5 and y=4 to get x + y=9, and x= -7 and y=4 to get y-x=ll. The greatest value of(y-x)(x + y)is(9)(11)= 99.
转载请注明原文地址:https://tihaiku.com/zcyy/3970759.html
相关试题推荐
Whatisthelargestintegervalueoftthatsatisfiestheinequality[img]2014m5x
In[img]2014m5x/ct_egreqj_egreqjs_0002_20132[/img]ABC,AB[img]2014m5x/ct_egreqj_e
Solveforx:-4[img]2014m5x/ct_egreqj_egreqjs_0024_20132[/img]x+3<18xisgre
[img]2014m5x/ct_egreqm_egreqtbz1_0178_20135[/img][br]Eachofthefollowingis
[img]2014m5x/ct_egreqm_egreqtbz1_0175_20135[/img][br]Eachofthefollowingis
[img]2014m5x/ct_egreqm_egreqtbz1_0175_20135[/img][br]Accordingtothegraph,w
[img]2014m5x/ct_egreqm_egreqtbz1_0154_20135[/img][br]Thecostofbooksandmat
[img]2014m5x/ct_egreqm_egreqtbz1_0154_20135[/img][br]Ofthefollowingyears,w
[img]2014m5x/ct_egreqm_egreqtbz1_0151_20135[/img][br]Therewere1,650graduate
If3x+4y=17and5x+2y=23,whatisthevalueofx-y?______[img]2014m5x/ct_egreqm
随机试题
[originaltext]Greekarcheologistssaythey’veuncoveredthelargestundergr
Theydrivehybridcars,iftheydriveatall,shopatlocalstores,ifthey
某钢材具有较高的韧性,同时有良好的焊接性能,冷热压加工性能和耐蚀性,部分钢种还具
舌黏膜乳头包括A.菌状乳头 B.片状乳头 C.丝状乳头 D.轮廓乳头 E
甲公司是一家以募集方式设立的股份有限公司,其注册资本为人民币6000万元。董事会
以下哪类病毒性肝炎不会引起肝硬化A.甲型肝炎 B.乙型肝炎 C.丙型肝炎
影响企业选择厂址的因素主要有()。A.国家的有关方针与政策 B.资源的
治疗轻型急性肾盂肾炎的疗程一般为 A.3天8.3~7天C.14天D.半
存款是商业银行最主要的( )。A.风险资产 B.投资业务 C.资金来源
完全垄断形成的条件有()。A.自然垄断 B.家族垄断 C.专利权垄 D.
最新回复
(
0
)