The number 3.14 is a rounded value of the mathematical quantity . If you replace 3.14 with , what is the exact formula for the circumference in
terms of the diameter, d, and in terms of the radlus, r?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.