The table shows five activities (in days) for a project. use pert (program evaluation and review technique) to calculate the expected time of completion for activity b. a. 11 days b. 6.5 days c. 9 days d. 8 days

B. 6.5 days

Step-by-step explanation:

The estimated time for completing an activity can be computed if we have optimistic time, most likely time and pessimistic time

The formula is:

For activity B:

Putting the values in the formula

The correct answer is:

B. 6.5 days ..

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: