200分求一道数学题,懂英文的高手来呀A telephone company charges customers a certain amount for the first minute of a long distance call and another amount for each additional minute.A customer makes two calls to the same city—a 30-minu

200分求一道数学题,懂英文的高手来呀A telephone company charges customers a certain amount for the first minute of a long distance call and another amount for each additional minute.A customer makes two calls to the same city—a 30-minu 200分求一道数学题,最好能教下这种题目应该怎么求,有懂英文的高手么Change the polar coordinates to rectangular coordinates.(Enter your answers as ordered pairs.)(a) (19,派/3)求(x,y)=(b) (−9,3派/4)求(x,y)= 200分求一道数学题,最好能教下这种题目应该怎么求,求懂英文的高手Change the rectangular coordinates to polar coordinates with r > 0 and 0 ≤ θ ≤ 2派 (Enter your answers as ordered pairs.) (a) (−1,−1)(r,θ) = ( 200分求一道数学题,求懂英文的高手If a projectile is fired from ground level with an initial velocity of ν ft/sec and at an angle of θ degrees with the horizontal,the range R of the projectile is given by the following formula.If ν = 9 一道数学题 求不定积分 高手速度来啊! 200分求一道数学题,懂英文的来拉,图片应该会一会儿会上去Two points P and Q on level ground are on opposite sides of a building.To find the distance between the points,a surveyor chooses a point R that is a = 328 feet from P and c 200分求一道数学题,懂英文的来,求神人教下过程A radioactive substance decays accrding to q(t)=q0e^-0.0063t where q0 is the initial amount of the substance ant t is the the in days.Find the half-life of the substance to the nearest ten sat数学题一道求高手 200分求一道物理题,求懂英文的高手来帮下忙A certain isotope has 80 protons and 122 neutrons in its nucleus.Identify the element involved and find the atomic and mass numbers.Atomic number=Mass number= 一道数学题 高一的 求解答 只限今晚~~~~(>_。。。 高手速度啊 对的 分再加10 200分求一道数学题,求懂英文,懂棒球规则的神人解答呀A baseball diamond has four bases (forming a square) that are 90 feet apart; the pitcher's mound is 60.5 feet from home plate.Approximate the distance from the pitcher's mound to 200分一道数学题 200分求一道物理题,求帮助 各种求 懂英文的高手嘞Light with a wavelength of 544.6 nm strikes a single slit that is 0.4 mm wide. The diffraction pattern produced by the slit is observed on a wall a distance of 1.4 m from the slit. (a) 一道数学题!求各位高手解答! 一道数学题.求各位高手解答.如图上 一道高中数学题 求高手解答 谢谢~ 一道数学题,求高手,真心不会. 求这首歌的歌名!懂英语的高手来!求这个视频背景音乐,能听懂英文的高手来!