Show Work: <span>Calculate 9 x 8, which is 72. Since 72 is two-digit, we carry the first digit 7 to the next column. </span> 3 <span>Calculate 8 x 8, which is 64. Now add the carry digit of 7, which is 71. Since 71 is two-digit, we carry the first digit 7 to the next column. </span> 4 <span>Calculate 7 x 8, which is 56. Now add the carry digit of 7, which is 63. Since 63 is two-digit, we carry the first digit 6 to the next column. </span>
5 <span>Calculate 2 x 8, which is 16. Now add the carry digit of 6, which is 22. Since 22 is two-digit, we carry the first digit 2 to the next column. </span> 6 <span>Calculate 4 x 8, which is 32. Now add the carry digit of 2, which is 34. Since 34 is two-digit, we carry the first digit 3 to the next column. </span> 7 <span>Bring down the carry digit of 3. </span> 8 <span>Calculate 9 x 7, which is 63. Since 63 is two-digit, we carry the first digit 6 to the next column. </span> 9 <span>Calculate 8 x 7, which is 56. Now add the carry digit of 6, which is 62. Since 62 is two-digit, we carry the first digit 6 to the next column. </span> 10 <span>Calculate 7 x 7, which is 49. Now add the carry digit of 6, which is 55. Since 55 is two-digit, we carry the first digit 5 to the next column. </span> 11 <span>Calculate 2 x 7, which is 14. Now add the carry digit of 5, which is 19. Since 19 is two-digit, we carry the first digit 1 to the next column. </span> 12 <span>Calculate 4 x 7, which is 28. Now add the carry digit of 1, which is 29. Since 29 is two-digit, we carry the first digit 2 to the next column. </span>
13 <span>Bring down the carry digit of 2. </span> 14 <span>Calculate 9 x 6, which is 54. Since 54 is two-digit, we carry the first digit 5 to the next column. </span> 15 <span>Calculate 8 x 6, which is 48. Now add the carry digit of 5, which is 53. Since 53 is two-digit, we carry the first digit 5 to the next column. </span>
16 <span>Calculate 7 x 6, which is 42. Now add the carry digit of 5, which is 47. Since 47 is two-digit, we carry the first digit 4 to the next column. </span>
17 <span>Calculate 2 x 6, which is 12. Now add the carry digit of 4, which is 16. Since 16 is two-digit, we carry the first digit 1 to the next column. </span>
18 <span>Calculate 4 x 6, which is 24. Now add the carry digit of 1, which is 25. Since 25 is two-digit, we carry the first digit 2 to the next column. </span>
19 <span>Bring down the carry digit of 2. </span>
20 <span>Calculate 9 x 4, which is 36. Since 36 is two-digit, we carry the first digit 3 to the next column. </span> 21 <span>Calculate 8 x 4, which is 32. Now add the carry digit of 3, which is 35. Since 35 is two-digit, we carry the first digit 3 to the next column. </span> 22 <span>Calculate 7 x 4, which is 28. Now add the carry digit of 3, which is 31. Since 31 is two-digit, we carry the first digit 3 to the next column. </span> 23 <span>Calculate 2 x 4, which is 8. Now add the carry digit of 3, which is 11. Since 11 is two-digit, we carry the first digit 1 to the next column. </span> 24 <span>Calculate 4 x 4, which is 16. Now add the carry digit of 1, which is 17. Since 17 is two-digit, we carry the first digit 1 to the next column. </span> 25 <span>Bring down the carry digit of 1. </span> 26 <span>Calculate 9 x 5, which is 45. Since 45 is two-digit, we carry the first digit 4 to the next column. </span> 27 <span>Calculate 8 x 5, which is 40. Now add the carry digit of 4, which is 44. Since 44 is two-digit, we carry the first digit 4 to the next column. </span> 28 <span>Calculate 7 x 5, which is 35. Now add the carry digit of 4, which is 39. Since 39 is two-digit, we carry the first digit 3 to the next column. </span> 29 <span>Calculate 2 x 5, which is 10. Now add the carry digit of 3, which is 13. Since 13 is two-digit, we carry the first digit 1 to the next column. </span> 30 <span>Calculate 4 x 5, which is 20. Now add the carry digit of 1, which is 21. Since 21 is two-digit, we carry the first digit 2 to the next column. </span> 31 <span>Bring down the carry digit of 2. </span> 32 <span>Calculate 342312 + 2995230 + 25673400 + 171156000 + 2139450000, which is 2339616942</span> <span> </span>
The problem with the here is that we might have introduced bias into our sample by failing to randomize the assignment of gender. By pacing the male gender in the treatment group and females into the control group, this might spring up a spurious association in our experiment as a result of a possible confounding variable, gender. Therefore, assignment of subject shouldn't be on the basis of gender.
2.)
Using a coin toss in placing subjects into groups will give a good random assignment, however, since only ten subjects are available and of which 5 will be placed into each group, there is no certainty that there will be equal number of heads and tails during the 10 flips. Alternatively, a random selection of the name of the 10 subjects could be chosen from a raffle.
3.)
Each batch of rat might be homogenous and hence will affect our experiment and definitely our conclusion. It would be best to assign rats from each batch to all treatment groups in other to obtain a good random design
Since we know that the graph of our quadratic function has x-intercepts at (6,0) and (18,0), and are the zeroes of our quadratic. To find our quadratic we are going to factor each zero backwards and multiply them:
Now that we have our quadratic function, we are going to use the average formula: is the function evaluated at the <span>9th month </span> is the function evaluated at the 3rd month
We can conclude that the closest approximate average rate of change for Edna's profits from the 3rd month to the 9th month is: <span>B. −11.63 dollars per month.</span>
and 
are the zeroes of our quadratic. To find our quadratic we are going to factor each zero backwards and multiply them:
is the function evaluated at the <span>9th month
is the function evaluated at the 3rd month ![m= \frac{[9^{2}-24(9)+108]-[3^{2}-24(3)+108]}{9-3}](https://tex.z-dn.net/?f=m%3D%20%5Cfrac%7B%5B9%5E%7B2%7D-24%289%29%2B108%5D-%5B3%5E%7B2%7D-24%283%29%2B108%5D%7D%7B9-3%7D%20)
