The height of a triangle is 4 more than the base, and the area of the triangle is 6 square units. Find the length of the base. Let x = the length of the base
Let x = the length of the base, the height is x + 4. its area = 1/2x(x + 4) = 6, x^2 + 4x - 12 = 0, (x + 6)(x - 2) = 0, x = -6 or x = 2. So the base is 2 units.
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Question
Updated 11/18/2014 11:15:12 AM
Confirmed by andrewpallarca [11/18/2014 11:15:12 AM]
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Questions asked by the same visitor
Factor completely. n 2 + 7n - 44 (n - 4)(n - 11) (n - 4)(n + 11) (n + 4)(n - 11)
Question
Updated 11/16/2014 10:12:27 PM
n^2 + 7n - 44 = (n + 11)(n - 4)
Confirmed by yumdrea [11/16/2014 10:15:31 PM]
Solve n3 + 2n2 - 15n = 0 by factoring. Show the factored form of the equation, and the resulting solutions.
Weegy: n3 2n2 - 15n = 0 is n (2 n^4-15) = 0. (More)
Question
Updated 11/18/2014 9:04:32 PM
n^3 + 2n^2 - 15n = 0
n(n^2 + 2n - 15) = 0
n(n + 5)(n - 3) = 0
n = 0
n + 5 = 0, n = -5
n - 3 = 0, n = 3
So the solutions are n = 0 , n = -5 , n = 3 .
Confirmed by jeifunk [11/18/2014 9:10:18 PM]
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