SAT 2 maths level2 A coin is tossed three times.Let A ={three heads occur} and B = {at least one head occurs}.What is P(AUB)答案是7/8P(AUB) = P(A) + P(B) - P(A∩B) = 1/8 + 7/8 - (1/8)(7/8) = 53/64

SAT 2 maths level2 A coin is tossed three times.Let A ={three heads occur} and B = {at least one head occurs}.What is P(AUB)答案是7/8P(AUB) = P(A) + P(B) - P(A∩B) = 1/8 + 7/8 - (1/8)(7/8) = 53/64 sat 数学level2 题一道the remainder obtained when 3x4+7x3+8X2-2x-3is divided by X+1 IS__ ?a -3B 0C 3D 5E 13 谁有sat 数学level2 的复习大钢啊! sat数学level2和物理要考满分能跳过几题、错几题呀?如题 sat 2190,sat2(数level2+物+历史,2180,托福110 进cornell/brown/duke可能性? sat 2数学考了level1,2我考了level1,750,不爽,于是又level2,800.还打算考一门物理.请问到时候报成绩的时候是提交level1,2,物理的成绩还是提交level2,不是，可能没说清楚。sat2数学不是分1和2吗？我分 用所给的正确形式填空 he sat there and -----(read) a book carefully .how about your maths exam SAT 2 maths A coin is tossed three times.given that at least one head appears.what is the probability that exactly two heads appear?Answer 3/7 为什么不是3/8? SAT II 选科sat ii的数学LEVEL 1和LEVEL2 是不是算同一科物理化学大概是什么难度?p.s.看到有中文,这个可以选么...去注册了一下发现没有中文选项— —那数学1和数学2哪个更容易考高分呢 maths a的音标 a maths book翻译 maths 1he got ( )the bus and sat down 2they are all interested ( ) history 3my mother is good( )maths加介词 I sent you a Maths A：-------you favorite------- B：Maths have a Maths lesson是什么意思 sat2 level2数学真题急求,发8 7 6 6 3 0 4 3 2 @ q q .com或留下链接, sat、选A、为什么