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x+4x=5 if x=1 then substitute the value of x to the given equation.... 1+4(1)=5 5=5

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The way for a fraction to be undefined is to have the lower number to be zero. So you only look at the bottom of the fraction and find what it would take to make it equal to z…ero. x+3=0 You would have to subtract three from both sides and you would get x= -3. So the answer is -3. (MORE)

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A pentagon has five sides. If each side is x + 4, then multiply that by 5 to get the perimeter, which is the length of all the sides put together. 5(x+4) Distributive property…: 5x + 20 Answer: 5x+ 20 (MORE)

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No, not under traditional arithmetic rules. Try to solve this equation: x - 4 = x + 4 x = x + 8 0 = 8. Once we subtracted x from both sides, we got an untrue statement. There …is no solution for x. (MORE)

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It is linear. The highest power is 1 (x = x1, y = y1) so it is linear.

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I assume you mean, X + Y = 4 Y - X = - 4 ----------------add 2Y = 0 Y = 0 find X ( either equation ) X +(0) = 4 X = 4 =check in both equations 4 + 0 = 4 4 = …4 ---------checks in first equation 0 - (4) = - 4 - 4 = - 4 ----------------checks in both equations and is a consistent system (4, 0) ---------------solution set (MORE)

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y = x + 4 Solve for the y intercept (when x = 0) y = (0) + 4 y = 4 So we have one coordinate: (0,4) Now solve another point, let's make y 0: 0 = x + 4 x = -4 So we ha…ve a second coordinate: (-4, 0) Plot those two points on the graph, and draw a line connecting them. The line additionally is keeps going past those points on both sides, unless it is bounded by a restriction -- in this case it is not. I'll include a link to site that let's you check your work in the related links. (MORE)

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That doesn't factor neatly. Applying the quadratic equation, we find two imaginary solutions: (1 plus or minus the square root of -47) divided by 6. x = 0.16666 + 1.14260910…0066840i = 1st root = r1 x = 0.16666 - 1.142609100066840i = 2nd root = r2 where i is the square root of negative one. Then factor as (x - r1)(x - r2) Or you can complete the square to transform the trinomial into the difference of the squares 3x2 - x + 4 factor out 3 = 3(x2 -(1/3)x + 4/3) add and subtract (1/6)2 = 3[x2 -(1/3)x + (1/6)2 - 1/36 + 4/3] simplify = 3[(x - 1/6)2 + 47/36] write 47/36 = - (-47/36) = - (√-1√47/6)2 = - (i√47/6)2 = 3[(x - 1/6)2 - (i√47/6)2] write the difference of the squares = 3[(x - 1/6) - (i√47/6)][(x - 1/6) + (i√47/6)] = 3[(x - (1 + i√47)/6)][(x - (1 - i√47)/6]. (MORE)

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Is that 4 meters by 4 meters by 4 meters? Or 4 feet by 4 feet by 4 feet? Or something else? Numbers require units of measurement if you are asking for a translation into some …other unit of measurement. (MORE)

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You would use the FOIL method, first outer inner last, to get this answer. You multiply the first set of numbers together, then the outer set of numbers, then the inner, a…nd finally the last set of numbers. All that's left to do is simplify if needed and in order of descending powers. So ( a + b ) * ( c + d ) = ac + ad + bc + bd This would give us the answer of... ( x - 2 ) ( x + 4 ) = x^2 + 4x - 2x - 8 = x^2 + 2x - 8 (MORE)