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A welcome mat on the front porch is a semicircle. The straight side of the mat is 36 inches. What is the perimeter of the mat?
92.55 inches
Determinant of matrix in java?
/*This function will return the determinant of any two dimensional matrix. For this particular function a two dimensional double matrix needs to be passed as arguments - Avishek Ghosh*/ public double determinant(double[][] mat) { double result = 0; if(mat.length 2) { result = mat[0][0] * mat[1][1] - mat[0][1] * mat[1][0]; return result; } for(int i = 0; i < mat[0].length; i++) { double temp[][] = new double[mat.length - 1][mat[0].length - 1]; for(int j = 1; j < mat.length; j++) { System.arraycopy(mat[j], 0, temp[j-1], 0, i); System.arraycopy(mat[j], i+1, temp[j-1], i, mat[0].length-i-1); } result += mat[0][i] * Math.pow(-1, i) * determinant(temp); } return result; }
A wrestling mat is 3 meters longer than it is wide The mat covers a total of 108 square meters of floor area What is the length of the wrestling mat?
length = w + 3area = 108area = w * (w + 3)108 = w^2 +3ww^2 + 3w -108 = 0w = 9 or -12The width is 9 meters, the length is 12 meters.
What are some examples of a square prism?
Pieces of timber ("4 by 4" or "2 by 2") with a square cross section but a long length. A square place mat or beer mat , with a square (obviously) cross section and a very small height.
What is a ground mat?
the earthing mat on the earth
