Answer:
m=52.17
Step-by-step explanation:
<em>The complete question in Spanish is</em>
El área de la región rectangular es 4400 cm2. Calcular el valor de m
largo :2m-20
ancho: m
<em>The question in English is</em>
The area of the rectangular region is 4400 cm2. Calculate the value of m
length :2m-20
width: m
we know that
The area of a rectangle is equal to
where
L is the length
W is the width
we have
substitute in the formula the given values and solve for m
Distribute in the right side
Solve the quadratic equation by graphing
Using a graphing tool
The solution is m=52.17 (the positive value is the solution)
see the attached figure
[\Tex] \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{arr
its is A
First Step: Leave "x" alone, pass the 3 to the other side
X= 10+3
Second Step: Add 10 plus 3
X= 13
So your answer is: x=13
The area of the shape is the same as
Area of the rectangle - Area of the semi-circle.
From the picture, the length and the width of the rectangle are 11 and 8 respectively so the area of the rectangle will be 8 * 11 = 88 unit^2.
From the picture, the diameter of the semi-circle is 8 and so the radius is 4.
Using the area of a semicircle formula:
A =
A = unit^2.
Hence, the area would be 88 - 25.12 = 62.9 unit^2