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 Answer: Breath of the wall: 125m Area of the ground:10000m² Explanation: Breadth is a mathematical term describing the distance between a shape's right and left sides. You might think that the definition of breadth sounds similar to the definition of width. The terms breadth and width are interchangeable! We briefly discussed the area earlier in the lesson, so let's pick up where we left off. The area of a shape tells us how much space there is inside it. The area of a rectangle will be the focus of this lesson. To calculate the area of a rectangle, multiply its breadth or width by two of its dimensions, such as its height or length. Let us calculate the area of this blue rectangle.      perimeter = 2(l+b)      410m = 2(80+b)                    =160+2b           2b = 410-160               = 250      ...

Answer: Equation was factorized  3m²n²(9mn-18n+75m) Explanation: Take a look at the  quadratic equation            ax2 + bx + c = 0. Now, find two numbers whose  product equals ac  and whose sum  equals b .           (number 1)(number 2) = ac + (number 2) = b Simply split the middle term by these two numbers:            ax2 + (number 1)x + (number 2)           x + c = 0    Out the common factors and simplify the given equation:          = 27m³n³-18m²n³ + 75m³n²​ Take out the  3m²n²          = 3m²n²(9mn-18n+75m) Therefore factorized equation is  3m²n²(9mn-18n+75m)

Answer: The app's estimated time is  38.4 minutes Explanation: According to the question, it took 48 minutes to drive downtown because the app estimated it would take less time, and the error was 20%. So the app's estimate is 48*(1-20%)  =48*80%  =48*0.8(digital multiplication)  = 38.4 minutes. Therefore, the app's estimate is  38.4 minutes