收藏
下载资源 加入VIP,免费下载

2019年春八年级数学下册第18章勾股定理周滚动练（18.1_18.2）课件（新版）沪科版.pptx

上传人：brainfellow396 文档编号：919816 上传时间：2019-03-03 格式：PPTX 页数：15 大小：895.37KB
下载 相关 举报
2019年春八年级数学下册第18章勾股定理周滚动练（18.1_18.2）课件（新版）沪科版.pptx_第1页
第1页 / 共15页
2019年春八年级数学下册第18章勾股定理周滚动练（18.1_18.2）课件（新版）沪科版.pptx_第2页
第2页 / 共15页
2019年春八年级数学下册第18章勾股定理周滚动练（18.1_18.2）课件（新版）沪科版.pptx_第3页
第3页 / 共15页
2019年春八年级数学下册第18章勾股定理周滚动练（18.1_18.2）课件（新版）沪科版.pptx_第4页
第4页 / 共15页
2019年春八年级数学下册第18章勾股定理周滚动练（18.1_18.2）课件（新版）沪科版.pptx_第5页
第5页 / 共15页
点击查看更多>>
资源描述

周滚动练(18.118.2),解:设经过时间x后二人在B处相遇,这时乙共行AB=3x,甲共行AC+BC=7x. AC=10,BC=7x-10. 又A=90,BC2=AC2+AB2, ( 7x-10 )2=102+( 3x )2, 解得x1=0( 舍去 ),x2=3.5, AB=3x=10.5,AC+BC=7x=24.5. 答:甲走了24.5步,乙走了10.5步.,

展开阅读全文
相关资源
猜你喜欢
  • ETSI EN 300 288-2001 Access and Terminals (AT) 64 kbit s Digital Unrestricted Leased Line with Octet Integrity (D64U) Network Interface Presentation (V1 2 1)《接入和终端(AT) 具有八位的64 kbit_1.pdf ETSI EN 300 288-2001 Access and Terminals (AT) 64 kbit s Digital Unrestricted Leased Line with Octet Integrity (D64U) Network Interface Presentation (V1 2 1)《接入和终端(AT) 具有八位的64 kbit_1.pdf
  • ETSI EN 300 289-2001 Access and Terminals (AT) 64 kbit s Digital Unrestricted Leased Line with Octet Integrity (D64U) Connection Characteristics (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s数字.pdf ETSI EN 300 289-2001 Access and Terminals (AT) 64 kbit s Digital Unrestricted Leased Line with Octet Integrity (D64U) Connection Characteristics (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s数字.pdf
  • ETSI EN 300 289-2001 Access and Terminals (AT) 64 kbit s Digital Unrestricted Leased Line with Octet Integrity (D64U) Connection Characteristics (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s数字_1.pdf ETSI EN 300 289-2001 Access and Terminals (AT) 64 kbit s Digital Unrestricted Leased Line with Octet Integrity (D64U) Connection Characteristics (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s数字_1.pdf
  • ETSI EN 300 290-2001 Access and Terminals (AT) 64 k bits Digital Unrestricted Leased Line with Octet Integrity (D64U) Terminal Equipment Interface (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s.pdf ETSI EN 300 290-2001 Access and Terminals (AT) 64 k bits Digital Unrestricted Leased Line with Octet Integrity (D64U) Terminal Equipment Interface (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s.pdf
  • ETSI EN 300 290-2001 Access and Terminals (AT) 64 k bits Digital Unrestricted Leased Line with Octet Integrity (D64U) Terminal Equipment Interface (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s_1.pdf ETSI EN 300 290-2001 Access and Terminals (AT) 64 k bits Digital Unrestricted Leased Line with Octet Integrity (D64U) Terminal Equipment Interface (V1 2 1)《接入和终端(AT) 具有八位的64 kbit s_1.pdf
  • ETSI EN 300 291-1-1999 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa.pdf ETSI EN 300 291-1-1999 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa.pdf
  • ETSI EN 300 291-1-1999 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa_1.pdf ETSI EN 300 291-1-1999 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa_1.pdf
  • ETSI EN 300 291-2-2002 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa.pdf ETSI EN 300 291-2-2002 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa.pdf
  • ETSI EN 300 291-2-2002 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa_1.pdf ETSI EN 300 291-2-2002 Telecommunications Management Network (TMN) Functional Specification of Customer Administration (CA) on the Operations System Network Element (OS NE) Interfa_1.pdf
    • 相关搜索

    当前位置：首页 > 考试资料 > 中学考试

    copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
    备案/许可证编号：苏ICP备17064731号-1