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22.06.2019 •
Mathematics
The length pf a rectangle is given by 2t +3 and its height is square root t, where t is time in seconds and the dimensions are in centimeters. find the rate of the change of the area with respect to time. a'(t)=
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Ответ:
Step-by-step explanation:
Given : Length of rectangle = 2t+3
Height of rectangle =![\sqrt{t}](/tpl/images/0003/4666/98e83.png)
To Find: Find the rate of the change of the area with respect to time.
Solution:
Area of rectangle =![Length \times Width](/tpl/images/0003/4666/a2eb2.png)
=![(2t+3) \times \sqrt{t}](/tpl/images/0003/4666/7320c.png)
=![2t^{\frac{3}{2}}+3t^{\frac{1}{2}}](/tpl/images/0003/4666/a1d2c.png)
=![2t^{\frac{3}{2}}+3t^{\frac{1}{2}}](/tpl/images/0003/4666/a1d2c.png)
So,![A(t)=2t^{\frac{3}{2}}+3t^{\frac{1}{2}}](/tpl/images/0003/4666/8b099.png)
Hence the rate of the change of the area with respect to time is
Ответ: