Answer:
A = πr² ← r is the radius and r = \frac{1}{2} d ← d is the diameter
Hence
π (\frac{1}{2} d)² = A, that is
\frac{d^2\pi }{4} = A ( multiply both sides by 4 )
d²π = 4A ( divide both sides by π )
d² = \frac{4A}{\pi } ( take the square root of both sides )
d = \sqrt{\frac{4A}{\pi } }
Answer z=2
See picture attached for the math
Answer:
$9.36
Step-by-step explanation:
First 12.5 - 5.3 = 7.2
7.2 x 1.30 = 9.36
Answer:
12.5 leters
Step-by-step explanation:
If you take the 4 liters she used to cover 50 doors,
