Answer:
9 + 10 = 19
Step-by-step explanation:
Answer: 390
Step-by-step explanation:
Area of circle: A=pi×r². This area coresponds to 360degrees, or 2×pi radians.
2×pi ....... pi×r²
t radians....x
where t=2.75rads
Area of t: x=pi×r²×t/2/pi=r²×t/2
Area of t: 3²×2.75/2=9×2.75/2=12.375
Answer: the area of 2.75 radians is 12.375
Convenience sampling.
It's biased, they are only sampling people who are eating out at the time. It leaves out those not currently at the restaurant.