x^2-8x=-13

x^2-8x=-13

Mr Smith, the Mathematics teacher for Standard VI, is an exasperated person. He wants to device a way to keep his class of excited students quiet, so he can catch a bit of sleep (he went to late night...

1. The area of a square is 3 square inches bigger than the area of a rectangle. The width of the rectangle is 3 inches shorter than one side of the square, and the length of the rectangle is 4 inches...

Points E and F are chosen on sides BC and AB respectively of the square ABCD so that the lines DE and DF divide the square into three regions of equal area. The sides of the square have length...

Please help me, I cannot do this no matter what. Also, the other question is what percent of the square's area is the area of the new rectangle..... IF you can pls provide both answers with a explanation...

A square mirror has sides measuring 2 feet less than the sides of a square painting. If the difference between their areas is 32 square feet, find the lengths of the sides of the mirror and painting...

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A quadrilateral has diagonals that do NOT bisect each other. Which of the following types of quadrilaterals could it be? A)Parallelogram B) Rectangle C) Rhombus D)...

A). 2n^2=-10n-6 B). z^2-14z+34=0

The answer choices are: √128, 3√128, 128^2, 128^3

Two congruent chords AB and CD which are not diameters, intersect at right angle in P. O is the centre of the circle. If M and N are the mid-points of AB and CD respectively, then prove that quadrilateral...

(4√3+√5)(√3-9√5) =

Find all 2x2 matrices A that are symmetric and whose squares are equal to themselves

(x+6)^2 = 44 So I know how to do the square root property but don't know how to do it with the 44 being there (and not having a perfect square) The answers Are A)...

Company W is testing a sales software. Its sales force of 500 people is divided into four regions: Northeast Southeast Central West Each sales person is expected to sell...

complete the square of the given quadratic expression. f(x)=x^2-8x+13

Explain how a figure can be a rectangle, a rhombus, and a square.

The number that should be added to x^2-4x to complete the square is ?