Answer:
6.28 km
Step-by-step explanation:
The formula for circumference is C = 2πr. Just plug in the radius. C = 2π2. 2 times 2 is 4. So, multiply 4π, which is 6.283185307 (rounded to the nearest billionths). Generally, you are supposed to round to the nearest hundredth. The 3 would round the 8 down, leaving 6.28. The unit used to measure the radius, so unless told otherwise by the problem, stick to km. This results in 6.28 km being your final answer.
16 ounces for $4.40 is a better deal by .025
Answer:
c
Step-by-step explanation:
One has 21 and other has 12
Step-by-step explanation:
y varies as x^2
y=75/8
x=5
x^2=5^2=25
y=kx^2
k= constant
75/8=25k
cross multiply
8*25k=75
200k=75
k=75/200=15/40=3/8
therefore k=3/8.
equation bonding x and y =
x=3/8y
x=5. 5=3/8y
3=40y. therefore y=3/40.
when x is 2
2=3/8y
16y=3
y=3/16
