Answer:
The position of Michael's hands relative to the surface of the water is -<u>1.3 meters</u>.
Step-by-step explanation:
<u><em>The question is incomplete, so below is the complete question?</em></u>
<em>Michael is doing an underwater handstand. His feet are sticking up 0.5 meters above the surface of the water. Michael's hands are 1.8 meters directly below his feet. What is the position of Michael's hands relative to the surface of the water?</em>
Now, to find the position of Michael's hands relative to the surface of the water.
Meters of Michael's hands directly below his feet = 1.8 meters.
Meters of his feet sticking above the surface of the water = 0.5 meters.
So, to get the position of Michael's hands relative to the surface of the water we subtract meters of Michael's hands directly below his feet from meters of his feet sticking above the surface of the water:

Therefore, the position of Michael's hands relative to the surface of the water is -1.3 meters.
900+2,100=3000 that would be ur answer for that question
Answer: 4.5 pounds.
Step-by-step explanation:
Given : Weight of original pipe =45 pounds
Weight of first piece = 18 pounds
Then, Weight of other piece = 45- 18 = 27 pounds
Length of first piece = 3 feet
Let x be the length of other piece.
As length is directly proportional to weight.
Then, 

Hence, the he length of the other piece = 4.5 pounds.
Answer:
17
Step-by-step explanation:
1) if to solve the first inequation, tnen 3x<52; ⇔ x<52/3;
2) if to solve the seconde inequation, then 2x≥24; ⇔ x≥12.
3) according to the items 1 and 2 x∈[12;52/3);
4) the largest prime number is 17.