Answer: A= 460 mm2
Step-by-step explanation:
Hi, since the circumference formula is :
C = 2 π r
Where r is the radius, we can solve the formula for the radius replacing with the value given:
76 =2 π r
76 / (2 π) = r
r = 12.1 mm
Now , we have to apply the formula for the area of a circle.
A = π r^2
A = π (12.1)^2
A= 459.96 mm2= 460 mm2 (rounded to the nearest tenth, since .9 is higher than .5)
Feel free to ask for more if needed or if you did not understand something.
Answer:
Um, no lo sé, lo siento, solo necesito los puntos
Step-by-step explanation:
We know that 50/200 of the counters have white paint. That is equal to 1/4 of the counters. Since there is an even distribution of the counters, we can guess that 1/4 of the counters taken out have white paint. 1/4 of 80 = 20
We could expect about 20 of the counters taken out to have white paint