At a depth of x metres, the temperature of the water is an ocean is t°c. at depths below 900 meters, t is inversely proportional to x. t is given by t=4500/x. work out the difference in the temperature of the water at a depth of 1200 metres and the temperature of the water at a depth of 3750 metres.

Hi there! The answer is 2.55°C

To find our answer we must plug in the values of X into the formula.
Depth = 1200 metres --> x = 1200 --> T = 4500 / 1200 = 3.75°C
Depth = 3750 metres --> x = 3750 --> T = 4500 / 3750 = 1.2 °C

The difference of the temperatures is 3.75°C - 1.2°C = 2.55°C

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle