Answer:
Step-by-step explanation:
r = Radius of semicircle = 
Area of semicircle is given by
The area of the semicircle is 
.
The area os the square is 25 cm sq so the radius of the circle should be about 2.82 cm
Answer:
length : 8 m
width : 13/2 = 6.5 m
Step-by-step explanation:
area of rectangle = l(ength)×w(idth) = 52
l = 2w - 5
=> (2w - 5)×w = 52
=> 2w² -5w - 52 = 0
we know, when transforming this quadratic equation into a multiplication of two expressions of w, that we need to have 2w and w (to make 2w²), and then which 2 numbers multiply to 52 and add to -5 (when one is multiplied by 2 due to 2w) : -13 and 4
=> (2w - 13)×(w + 4) = 0
=> 2 solutions for w :
2w-13 = 0
2w = 13, w = 13/2
w+4 = 0, w = -4
negative values for a side length of a shape do not make sense, so the only usable solution is w = 13/2
=> l = 2w - 5 = 13 - 5 = 8
Answer:
Step-by-step explanation:
An international company has 25,600 employees in one country. If this represents 19.3% of the company's employees, then the total number of employees that the international company has would be 100%.
To determine the actual value for 100%,
Let x represent the total number if employees that the international company has. Therefore
19.3/100 = 25,600/x
Cross multiplying,
19.3x = 25600 × 100 = 2560000
x = 2560000/19.3 = 132642.49
The total number of employees is approximately 132643
Answer:
2 is proportional because they all equal one when I divide them
I think :)
