位于第一象限。2019 AMC 10B Problems (B)Triangle ABC and A f B f C f have the same area.三角形ABC 和A f B f C f 的面积相同。(C)The slope of line AA f is −1. 直线AA f 的斜率是−1。(D)The slopes of lines AA f and CC f are the same.(E)Lines AB and A f B f...
2019 AMC 10A Problems • a square • a rectangle that is not a square • a rhombus that is not a square • a parallelogram that is not a rectangle or a rhombus •an isosceles trapezoid that is not a parallelogram 在以下类型的四边形中，有多少种在平面上存在一个与其所有四个顶点...
AMC 10 Problems--2004 A批注本地保存成功开通会员云端永久保存去开通 Problem 1 You and five friends need to raise dollars in donations for a charity, dividing the fundraising equally. How many dollars will each of you need to raise? Problem 2 For any three real numbers , , and , with , ...
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2018 AMC10A Problems 1. What is the value of 上述表达式的结果是多少？ 2. Liliane has 50% more soda than Jacqueline, and Alice has 25% more soda than Jacqueline. What is the relationship between the amounts of soda that Liliane and Alice have?(A)Liliane has 20% more soda than Alice...
2001 AMC10 2001 AMC 10 Problems Problem 1 The median of the list n, n+3, n+4, n+5, n+6, n+8, n+10, n+12, n+15 is 10. What is the mean? (A)4 (B)6 (C)7 (D)10 (E)11 Problem 2 A number is more than the product of its reciprocal and its additive inverse. In...
2001 AMC 10 Problems Problem 1 The median of the list n, n+3, n+4, n+5, n+6, n+8, n+10, n+12, n+15 is 10. What is the mean? (A)4 (B)6 (C)7 (D)10 (E)11 Problem 2 A number is more than the product of its reciprocal and its additive inverse. In which interva...
白板解题AMC 10_2021 Fall B Problems PPF prime-power factorization Problem 6_AMC 10_2021 Fall B Problem 9_AMC 10_2021 Fall B
At a gathering of 30 people, there are 20 people who all know each other and 10 people who know no one. People who know each other hug, and people who do not know each other shake hands. How many handshakes occur within the group? 相关知识点: ...
2019AMC10-专项训练B卷答案.docx,2019 AMC 10B Problems 2019AMC10B Problem 1 Alicia had two containers. The first was full of water and the second was empty. She poured all the water from the first container into the second container, at which point the sec