A water tank is in the shape of a cone as shown. If water is being drained from the bottom at a rate of 5 ft /min when the water in the tank has height 6 ft , at what rate is the height of the water changing at this same instant? 10 Exit rate: 5 ft/min

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.