Answer:
63 / 9 = 7 groups
(40)(7) = 280 tickets
Step-by-step explanation:
Answer:
99.0 in²
Step-by-step explanation:
The area (A) of the sector of the circle is calculated as
A = area of circle × fraction of circle
= πr² × 
( where r is the radius )
Here r = 9, thus
A = π × 9² × 
= 81π × ≈ 99.0 in²
Answer:
a) 510000000 c) 24.4 d) 502.3
Step-by-step explanation:
Answer:
Step-by-step explanation:
The function y = x² + 16 is positive for any value of x, hence the graph has no intersection with the x-axis and therefore has no real zero's.
If no zero's, -4 also can't be its zero.
Answer:
6 cm
Step-by-step explanation:
The diameter is 2x the radius
