If the data x1,x2.....,x10 is such that the mean of first four of these is 11, the mean of remaining

My first guess is that perhaps x 1 and x 2 are the two roots of the equation. But we can only know what they are if we are told.Read more

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Substitute the values a=1 a = 1 , b=−3 b = - 3 , and c=−4 c = - 4 into the quadratic formula and solve for x x . 3±√(−3)2−4⋅(1⋅−4)2⋅1 3 ± ( - 3 ) 2 - 4 ...Read more

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The roots of a quadratic equation and the solutions are related by : Sum of roots = -b/a Product of roots =c/a So from this, you can find x1 + x2 and x1 *Read more

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By the looks of it, you've let x3 be a free variable s. Hence, in addition to x1=−10+13s and x2=11−17s, you also have x3=0+1s.Read more

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Two-Phase method calculator. 1. Find solution using Two-Phase method. Minimize Z = x1 + x2 subject to the constraints 2x1 + 4x2 ≥ 4 x1 + 7x2 ≥ 7Read more

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Answer ... Step-by-step explanation ... Mean = (sumoftheobservations)/(number of ... observations ... According to the problem given ... ( x1 +x2)/2 = 6.Read more

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Consider the set of all (x1,x2) such that 2*x1 + 3*x2 = 6. Plot these points in R^2. First find a point P=(x1,0) satisfying the equation, this gives (3,0).Read more

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