SOLUTION: if x=2/3 is a root of 6x^2+kx-2=0. find the valie of k and the other root 2. solve for M in the equation. 3^4(m+1)+ 3^4m=246 3. The sides of a rectangle are xcm and (x+1)

Algebra ->  Square-cubic-other-roots -> SOLUTION: if x=2/3 is a root of 6x^2+kx-2=0. find the valie of k and the other root 2. solve for M in the equation. 3^4(m+1)+ 3^4m=246 3. The sides of a rectangle are xcm and (x+1)      Log On


   

Question 1031607: if x=2/3 is a root of 6x^2+kx-2=0. find the valie of k and the other root


2. solve for M in the equation. 3^4(m+1)+ 3^4m=246
3. The sides of a rectangle are xcm and (x+1)cm. A circle has a radius of (x+2)cm. The sum of the area of the rectangle and the circle is 184cm. Using π as 22/7 find the value of x.
4. Amina is 9/4 times as old as is son. Five years ago the ratio of there age was 8:3. What will be there ages 6 years from now?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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2. solve for M in the equation. 3^4(m+1)+ 3^4m=246
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3%5E%284%28m%2B1%29%29+%2B+3%5E%284m%29 = 246,  --->

3%5E%284m%29%2A3%5E4+%2B+3%5E%284m%29 = 246,  --->

3%5E%284m%29%2A%2881%2B1%29 = 246,

3%5E%284m%29 = 246%2F82 = 3,  --->

4m = 1  --->  m = 1%2F4.

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