Is x < y? (1) 2x < 3y (2) xy > 0 选项: A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C、BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is ...
百度试题 结果1 题目∴y=2x-3y。4.塔拉学习和蒂娜一样努力。:6.Tara works__ii__Tina。 ∵ 6.你弟弟和你妹妹,谁更有趣?__is_,your brother or yoursister?7.我赢了这次歌唱比赛,我学到了新东西,获得了乐趣。I___the__。Ⅰlearnedsomething__and had_∥。句型转换,每空一词。 相关知识...
结果1 题目 24 The equation of a straight line is 3y + 2x + 6 =0.Find(a) the gradient of the line,Answer[1](b) the coordinates of the point where the line intersects the y-axis,(0,-2)Answer (...,...) [1](c) the coordinates of the point at which the line intersects ...
y3dx+3xy2dy=0 is exact, then solve it. Exact Differential Equations:A differential equation which is of the form ∂F∂xdx+∂F∂ydy=0 for some function F(x,y) is called exact. The solutions to an exact equation are implicitly given by the level curves of F...
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If –2x > 3y, is x negative?(1) y > 0(2) 2x + 5y – 20 = 0 选项: 答案: D 经典答疑 发起提问 提问: 点此查看答疑 问一下小梅老师 这道题条件二 我只能得出2x小于-3y 带入条件二 -3y+5y-20小于0 2y小于20 y小于10 无法得出x是否为负。 评分: 1 浏览: 279 ...
Solve: \int^3_1 \int^2_0 \ 6 \ xy^2 \ dxdy (6x - y)^4 + 3y^3 = 628 Determine what y' at (1,1) is. Solve y^3 - 2xy = 2x^2y^3 , y(1) = -1 Let xy^2 + 2y(x + 2)^2 + 2 = 0 If x changes from -2.00 to -2.01 and y greater than 0, approximately how...
If 2x+3y−1=0 is the regression line of y on x, then byx is ……….. View Solution bxy=□□ byx=□□ ∴ Regression equation of x on y is □ ∴ Regression equation of y on x is □ View Solution The regression equation of y on x is 2x-5y +60 =0. Mean of x =...
1Where is the ___ office? ( ) A. teachers B. teachers’ C. teacher 2Is this the ___office? A. teacher B. teachers’ C. teacher’ s 3This is the___office. ( ) A. teacher B. teachers C. teacher’s 4This is the ___office.[ ] A. teacher B. teacher's C. teachers...
Find the solution to the following: (6xy-y^3)dx + (4y+3x^2-3xy^2)dy =0. Given that y p = 1 2 x 2 ? 1 6 x is a solution of the equation x 2 y ?? ? 6 x y ? + 12 y = x 2 ? x , find the solution of the IVP: x 2 y ?...