U need to find the square root by long division.
So the answer would be 2.2
to estimate round the numbers to the closest values
21 can round to 20
118 can round to 120
120*20 = 2400 x 2 = 4800
Answer is A
Answer:
f ( x ) = -3x + 1
to find it's inverse let f(x)= y
y= -3x + 1
x = - 3y + 1
-3y = x -1
y = -(x -1)/3
Step-by-step explanation:
I wish I could help but I'm not good in math at all