C = 2* (22/7)*7cm
C= 44 cm
If they are all in a line then we can find the equation of their line using: y = mx + b
First find m using points (2,5) and (3,3)
m = (5-3)/(2-3) = 2/-1 = -2
Now using (3,3) and m= -2 to solve for b:
3 = -2(3) + b
3 = -6 + b
9 = b
So our equation is y = -2x + 9
That is the solution for question b)
Now to find the mystery point, solve:
1 = -2x + 9
-8 = -2x
4 = x
So our mystery point is (4,1)
So for part a) the answer is k = 4
Answer:
38.48 inches
Step-by-step explanation:
A = πr²
r = d/2
r = 3.5
A = π(3.5)²
A = 12.25π ≈ 38.48
Answer:250 litres i believe
Step-by-step explanation:
