Which of the following are measurements of the sides of a right triangle?
a. 25, 23, 7
b. 9, 6,3
c. 18, 15, 4
d. none of the above

The answer to your question is letter D

Step-by-step explanation:

To demonstrate if the data are measurements of the sides of a right triangle use the pythagorean theorem.

                         c² = a² + b²

A. 25, 23, 7       25² = 23² + 7²

                        625 = 529 + 49

                        625 ≠ 578            These values are not of a right triangle

B. 9, 6,3             9² = 6² + 3²

                       81 = 36 + 9

                        81 ≠ 45                These values are not of a right triangle

c. 18, 15, 4         18² = 15² + 4²

                        324 = 225 + 16

                        324 ≠  241             These values are not of a right triangle

D. none of the above                     This is the right answer

ci

step-by-step explanation:

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.