Tracing Code - Trace the code segments showing the variables' values in the columns while circling the final values. 4. # assume the user inputs the values: 9, 8, 2, -1
sum = 0 sum num
num = 0 0 0
while (num >= 0):
num = int(input("Enter a positive integer: "))
if (num % 2 == 0):
sum += num

print(sum) # the output is:

Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)

Least square fit to polynomial write a function leastsquarefit3pol that solves a linear system of equations to find a least squares fit of a third order polynomial to an experimental data set given as two row arrays. the function leastsquarefit3pol must explicitly solve a set of linear equations and cannot use polyfit. there should be no restriction on the size of the problem that can be solved.

You have a small company and want to keep your costs low, but it is important your employees share data. which network would provide you with the most economical solution?