In the coordinate plane, points B and C are endpoints of a diameter of circle wi

游客2025-02-23 32

问题 In the coordinate plane, points B and C are endpoints of a diameter of circle with center O, if the coordinates of B are(3, 4)and the coordinates of C are(-7, 8), then what are the coordinates of the center?

选项 A、(2,-5)
B、(-5, 2)
C、(0, 0)
D、(1,0)
E、(-2, 6)

答案 E

解析 BC是直径，O是圆心，那么O点必然是BC的中点，因此O点坐标为：

，化简后得到(-2，6)。

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In the coordinate plane, points B and C are endpoints of a diameter of circle wi

Intherectangularcoordinatesystemabove,forhowmanyofthepointsthatlie

Inthecoordinateplane,pointsBandCareendpointsofadiameterofcirclewi

P(x,y)isthemidpointofAB?(notshownabove),thenwhatarethecoordinatesof

COMMODIOUS:A、crampedB、tranquilC、reservedD、encircledE、slapdashA

A、AcontrastofdifferentpointsofviewB、AnanalogythatseekstoillustrateC

CONSTRICT:DIAMETER::A、lathe:smoothnessB、rarefy:densityC、contract:tempe

Afauxpas—whetherinsocialcirclesorinprivate—canbe______,asitfocusesu

COMMODIOUS:A、crampedB、tranquilC、reservedD、encircledE、slapdashA

Theunexplaineddigressionsintothefinerpointsofquantumelectrodynamicsare

AlthoughsomeskepticspointstoArcticplacessuchasthehighlatitudesof

Anorator,whosepurposeistopersuademen,mustspeakthethingstheywish

FixingaWorldThatFostersObesityEnvironmentFosteringO

A. B. C. D.

由病毒编码的肿瘤抗原是A.CEA B.EIA抗原 C.MAGE-1 D.A

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()是对绩效管理中各个环节和工作要素进行全面监测、分析的过程。A.绩效沟通

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