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12 inches
42*4 = 168 inches.
the way they use math is buy calculating square yardage for carpeting; square footage for painting and wallpaper. Dimensions of rooms to fit the furniture; Lay out floor plans and traffic patterns; calculate size for window coverings .
the answer is 660 sq inches
This answer for each dimension is provided to 4 decimal places only.The height of the window is 26.8806 inches and the width is 14.8806 inches.For, let h equal the height and w the width.Thus in inches:1. h * w = 4002. h - w = 12We can rewrite 2. as h = w + 12Substituting h = w + 12 into 1. gives3. w (w + 12) = 400 thusw2 + 12w = 400w2 + 12w - 400 = 0Substituting the above values into the quadratic formulawhere the roots of aw2 + bw + c = (-b + or - ((b2 - 4ac) 1/2)) / 2a gives:w = (-12 + or - (122 - (4 * 1 * -400)1/2)) / 2 * 1= (-12 + or - (144 - -1600)1/2) / 2= (-12 + or - 17441/2) / 2= 14.8806 (to 4 decimal places only) and -26.8806(to 4 decimal places only)We can clearly discount the negative root. Therefore the width of the window is equal to 14.8806 inches (to 4 decimal places only).Substituting w = 14.8806 into 1. gives14.8806 * h = 400h = 400/14.8806h = 26.8806 (to 4 decimal places)
A+ x(x-6)=315
Measure the height and width of the window in inches. Next, multiply the height of the window by the width of the window. Then divide that number by 144 to get square feet.
H = W + 20; H x W = 640 ie W x (W + 20) = 640 ie W^2 + 20W - 640 = 0 This does not have a solution in integers, a close approximation is 17.2 x 37.2
The are of a window is 16 inches wide how long is the window
The area of the window is 21.8 square feet.
You have to multiply the two dimensions to get the area. In this case the answer will be 15 square feet.
20x4=80answer is 20 each side.
20x4=80answer is 20 each side.
24.93
area = width times height x = height x-12 = width x (x-12) = x^2 - 12X = 400 x^2 - 12X - 400 = 0 solve for x using quadratic formula X = (12 + SQRT(144 + 1600)) divided by 2 x = 26.88 = height width = x -12 = 14.88
Mr.Lumen replaced a square window with a rectangular one. the new window is 3ft wider and 2ft higher that the square one. it has an area of 30ft2 . How long was aside of the original square window?
45.63