Solving for h means we write the equation in such a way that h is isolated from other variables. It is done as follows:
(P = mgh) 1/mg
P/mg = mgh/mg
h = P/mg
Therefore, the correct answer from the choices listed above is option C, h = p/mg.
Hope this answers the question. Have a nice day.
Write and solve an equation of ratios:
6 inches 1 inch
-------------- = ------------
60 inches x
Cross-multiplying, 6x = 60, so x = 10 inches (answer)
The answer is C.
The definition of a "quadratic equation" is any equation that has a variable with an unknown value to a power no less than or more than 2. A is not the answer because nothing is to the 2nd power. B, although is to the second power, is simplified into just 4, so it has neither an unknown variable nor power of 2. D is also incorrect because when the 3 is distributed, the equation is just simply 12-3x, which has no power of 2. So C is correct because when the 7x is distributed, you get the equation 7x^2 +21x, which has both a variable with an unknown value and a power of two.
Extraneous root since dividing by zero is undefined
