首页
登录
职称英语
Solve the problem and indicate the best of the answer choices given. NUMBE
Solve the problem and indicate the best of the answer choices given. NUMBE
游客
2024-01-14
50
管理
问题
Solve the problem and indicate the best of the answer choices given.
NUMBERS: All numbers used are real numbers.
FIGURES: A figure accompanying a problem-solving question is intended to provide information useful in solving the problem. Figures are drawn as accurately as possible EXCEPT when it is stated in a specific problem that its figure is not drawn to scale. Straight lines may sometimes appear jagged. All figures lie in a plane unless otherwise indicated.
The following data sufficiency problems consist of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are
sufficient
for answering the question. Using the data given in the statements
plus
your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of counterclockwise), you must indicate whether
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient. [br] The figure above shows the shape of a flowerbed. If arcs WZ and XY are semicircles and WXYZ is a square, what is the area of the flowerbed?
(1) The perimeter of square WXYZ is 24.
(2) The diagonal
选项
答案
D
解析
alone is sufficient; if the perimeter of the square is 24, then the length of each side is 24/4=6, and the radius of each of the semicircles is 6/2=3. The area of the square is 6×6=36, and since the formula for the area of a circle is πr2, the area of the semicircles is 2×1/2[π(3×3)]=9π; 36+9π is the area of the flowerbed. (2) alone is sufficient; the side of a square is the diagonal divided by
(this is derived from the Pythagorean theorem), so the sides are equal to 6; by following the same process used with statement (1), we can determine the area of the flowerbed.
转载请注明原文地址:https://tihaiku.com/zcyy/3360418.html
相关试题推荐
Ifnoone______thephoneathome,ringmeatwork.A、returnsB、repliesC、answers
Scientistnowhavesomesurprisinganswersaboutwhetherbrainpower______aswe
Waterprobleminthefuturewillbecomemoreintenseandmorecomplex.Ourin
Waterprobleminthefuturewillbecomemoreintenseandmorecomplex.Ourin
______,thenewmedicineisnowinmassproduction.A、WiththesolvedproblemB、W
Everydirectorneedsanassistantthathecan________totakecareofproblems
AtfirstIthoughtthatmathproblemwouldberatherdifficult,butit________
LivinginthecentralAmericandeserthasitsproblems,________obtainingwater
Theinterviewershouldtakedownnotesatthemomenttheperson_________answer
Theydiscussedtheproblemthreeorfourtimes,butcouldcometono_________.A
随机试题
Whichofthefollowingstatementsistrueaccordingtothespeaker?[br][origi
Mostchildrenwithhealthyappetitesarereadytoeatalmostanythingthati
Whenwetellothersinformation,wealsoexpressourfeelingsatthesametime.
OneofourmainargumentisthatweinWesterncountriesactually【
There’sbeenalotoftalk【C1】______aboutwhoshouldgotocollegeandwhos
Thetreatmentherfatherreceivedhelped______hislifeby5years.A、prolongB、
公司有三条产品线,每条产品线各占其销量的1/3,按照产品成本计算结果,三条产品线
2020年11月,经统计可知,北京轨道交通路网运营线路达23条,总里程699.3
可行性研究的作用包括( )。A.投资决策的依据 B.完善和优化产业结构的依据
有关肝癌的临床表现,下列哪项不正确?A.可完全不痛或仅有轻微純痛 B.不会出现
最新回复
(
0
)