Where is the work????????????
9514 1404 393
Answer:
x = 4
Step-by-step explanation:
I like to put these in the form f(x) = 0. We can do that by subtracting the right side. Common factors can be cancelled from numerator and denominator, provided they are not zero.
![\dfrac{7}{x+3}+\dfrac{3}{x-3}-\dfrac{x}{x-3}=0\\\\ \dfrac{7(x-3)+(x+3)(3-x)}{(x+3)(x-3)}=0\\\\\dfrac{(x-3)(4-x)}{(x-3)(x+3)}=0\\\\ \dfrac{4-x}{x+3}=0\qquad x\ne3\\\\x=4 \qquad\text{equate the numerator to zero, add $x$}](https://tex.z-dn.net/?f=%5Cdfrac%7B7%7D%7Bx%2B3%7D%2B%5Cdfrac%7B3%7D%7Bx-3%7D-%5Cdfrac%7Bx%7D%7Bx-3%7D%3D0%5C%5C%5C%5C%20%5Cdfrac%7B7%28x-3%29%2B%28x%2B3%29%283-x%29%7D%7B%28x%2B3%29%28x-3%29%7D%3D0%5C%5C%5C%5C%5Cdfrac%7B%28x-3%29%284-x%29%7D%7B%28x-3%29%28x%2B3%29%7D%3D0%5C%5C%5C%5C%20%5Cdfrac%7B4-x%7D%7Bx%2B3%7D%3D0%5Cqquad%20x%5Cne3%5C%5C%5C%5Cx%3D4%20%5Cqquad%5Ctext%7Bequate%20the%20numerator%20to%20zero%2C%20add%20%24x%24%7D)
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If you leave the numerator as (x-3)(4-x), then there are two values of x that make it zero. Because x=3 makes the equation "undefined", it cannot be considered to be a solution.
Answer:
I believe it would be the last option
Step-by-step explanation:
It would be smaller since it is being reduced by 1/2, and if you turn your computer 180 degrees, it would be the shape of the last figure. Hope this helps!
The volume of a cube is equal to V = s^3.
Given a volume of 1/512, using the formula.
V = s^3
1/512 = s^3
s = cuberoot of 1/512
<span>s = 1/8 meter</span>