百度试题 结果1 题目MULTIPLE CHOICE Which quadratic equation has the solutions x=(-9±√(81-56))/4 A 2x^2+9x-7=0③ 2x^2-9x+7=0⊙4x^2+9x+14=0 2x^2+9x+7=0 相关知识点: 试题来源: 解析 D 反馈 收藏
The pair of linear equations we have is:1. 2x+y=12. x−y=−4 Step 6: Verify the solutionTo verify that this pair has the unique solution x=−1 and y=3:- Substitute x=−1 and y=3 into the first equation: 2(−1)+3=1 −2+3=1 (True) - Substitute x=−1 and ...
Sincet=cos2x, it must be in the range(0,1): - Fort=a+3: 0≤a+3≤1 This simplifies to: −3≤a≤−2 - Fort=−1: This is not possible sincecos2xcannot be negative. Conclusion Thus, the values ofafor which the equation has solutions are: ...
Solutions(x, y) = (0,2)Here, x=0 and y=2Substituting the values of x and y in theequation x - 2y= 4, we get,x-2y=40- (2× 2)=4But, -4≠ 4., (0, 2)is not a solution of the equationx-2y=4(2)Solution(x,y)=(2,0)Here, x=2 Substitutiequation 110*1015=135000(...
Which equation has x = 4 as the solution: A: log_4(3x + 4) = 2, B: log_3 (2x - 5) = 2, C:...Question:Which equation has x = 4 as the solution: A: log_4(3x + 4) = 2, B: log_3 (2x - 5) = 2, C: log_x(64) ...
This is precisely the essence of an equation: Finding the value or values of the unknown for which the equation is satisfied. Answer and Explanation: Since we have equality, we can work the terms of the equation to see what value is needed for c for the equ...
Evans , On solutions of a differential equation which are not of integrable square. Math. Z. 127 , 323–332 (1972).Atkinson, F. V., Evans, W. D.: On solutions of a differential equation which are not of integrable square. Math. Z. 127 , 323–332 (1972)...
aRecall that there were cases of the equation x2+ c = bx which had no solutions. Do all cases of the equation x2+ bx = c have solutions, where we are always assuming that b and c are positive numbers? 召回有等式x2+的案件没有解答的c = bx。 在哪里等式x2+ bx = c的所有案件有...
Function that best describe the graph: Based on the graph there are four zeros of the polynomial function which are the values of x that intersecting the x-axis, two of them are negative and two are positive.Thus what we are going to do is find the values ...
which equation has a graph you can trace to find the value of x that marks 8=5χ-3 help you find the coordinates for a point on the line of the equation? 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译!