Solve the problem.The table shows the population of a certain city in various different years. Use regression to find values for a and b so that f(x) = axb models this data, where x represents the number of years since 1990 and f(x) is the population of the city in hundreds of thousands. Round your answers to 4 decimal places.
A. a ? 2.1375, b ? 0.4432
B. a ? 2.6352, b ? 0.4756
C. a ? 1.8506, b ? 0.5121
D. a ? 1.7025, b ? 0.5375
Answer: B
Mathematics
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A piece of tin, 
inches on a side, is to have four equal squares cut from its corners, as in the illustration. If the edges are then to be folded up to make a box with a floor area of 81 square inches, find the depth of the box.
?
?
A. 11 in B. 13 in C. 6 in D. 12 in E. 9 in
Mathematics
Simplify the complex fraction.
A. x - 6
B. 
C. 
D. 
Mathematics
Subtract. Write a mixed numeral for the answer.
A. 22
B. 21
C. 21
D. 22
Mathematics
Provide an appropriate response.Since numbers in a proportion do not have to be whole numbers, give an example where all of the numbers in the proportion are fractions.
What will be an ideal response?
Mathematics