Non zero digits are always significant. any zeros between two significant digits are significant. a final zero or trailing zero in the decimal portion only are significant.
Negatives are always smaller then positives because negatives are less then 0. So, yes, -1/3 is less then 1/5
Formula for circumference: 2πr
r=2x+1
C=2π(2x+1)
distribute
C=4πx+2π
Answer:
7/20
Step-by-step explanation:
2/5 = 8/20
1/4 = 5/20
20/20 - 13/20 = 7/20
