  PRE-ALGEBRA
ALGEBRA 1
GEOMETRY
ALGEBRA 2
TRIGONOMETRY
PRE-CALCULUS
CALCULUS    Pre-Calculus, 9th edition PAGE: 331 SET: Exercises PROBLEM: 15
Please look in your text book for this problem Statement  Newtons Law of Cooling is Here is the temperature of the object and is the surrondings temperature.

Change in temperature .

At the intital time  and .

Substitute and in the equation . .

The general equation is .

Substitute in the above equation.  After three minutes, the temperature is then .

Hence .

substitute and in the above equation Substitute in the equation at .   The equation is Find the temperature after minutes.

The equation is . .

Temperature after minutes : Substitute and in the equation . . Temperature after minutes is . The equation is Find the temperature after minutes.

The equation is . .

Temperature after minutes : Substitute and in the equation . .  Temperature after minutes is . Temperature after minutes is and Temperature after minutes is . TESTIMONIALS
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