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9 Apr 2020
Pressure and depth. At surface of the ocean the water pressure is same as the air pressure above the water, 15
. Below the surface the water pressure increased by 4.34 
for every 10 ft of descent.
Find an equation for relationship between pressure and depth below ocean surface.
Pressure and depth. At surface of the ocean the water pressure is same as the air pressure above the water, 15 . Below the surface the water pressure increased by 4.34 for every 10 ft of descent.
Find an equation for relationship between pressure and depth below ocean surface.
Beverley SmithLv2
14 May 2020
is given by 
where I is measured in lumens and
is the depth of the well of a quadratic equation from its coefficients. We can also obtain the coefficients from the solutions.
and show that the product of the solutions is the constant term 20 and the sum of the solutions is 9, the negative of the coefficient of 
.
has solutions 
and 
, then 
.