You multiply the number 8 to each term in the parentheses.
8 x 5g = 40g; 8 x 5 = 40; 8 x (-2) = -16
Combine these together and it would be 40g + 40 - 16
Perpendicular has the reciprocal slope and u have to put the point given into point slope.
y-3=9/2(x-4)
(The slope of the original equation was -2/9)
62 divided by 0.25 is 248
Volume of water in the tank:

Differentiate both sides with respect to time <em>t</em> :

<em>V</em> changes at a rate of 2000 cc/min (cubic cm per minute); use this to solve for d<em>h</em>/d<em>t</em> :


(The question asks how the height changes at the exact moment the height is 50 cm, but this info is a red herring because the rate of change is constant.)
The answer is 596.6 I think