I believe it is the second one... I think = is for numbers only.
= 4 = x²
x = Answer: Length= 11 , Brteadth = 2
Step-by-step explanation: Let the breadth of the rectangle be x
length = 9 + x
area = 36 cm²
A.T.Q
36cm² = 9x*x
36 = 9x²
36/9 = 4 = x²
x = root of 4
x= 2
Therefore , breadth of rectangle is 3cm and length is 12 cm
verification:
l*b = 12*3 = 36cm²
The equation of a circle is (x - h)² + (y - k)² = radius² where point (h, k) is the center.
So using your equation, your center is (3, 6)
All you need to do is divide 1000 by 4 which is 250 :)
Total cost=variable cost+fixed cost
variable cost=1.25 times x or 1.25x
fixed cost=3
y=1.25x+3
f(x)=1.25x+3 is da rule