Question: /Downloads/129Assignment4-Blank.pdf +| Page view | A Read aloud | T) Add text | Draw Hi 4. [4 marks] The apparent temperature of the air at

/Downloads/129Assignment4-Blank.pdf +| Page view | A Read aloud | T) Add text | Draw Hi 4. [4 marks] The apparent temperature of the air at a certain temperature and humidity level is known as the heat inder. If r represents the relative humidity (in percent), then the heat index (in degrees Fahrenheit) for an air temperature of 100 F can be approximated by the function f(x) = 0.00912 + 0.139r + 91,875. (a) When the humidity level increases from 30% to 50%, what is the average rate of change of the heat index? Interpret your answer . (b) At what rate does the heat index change when the humidity level reaches 50%? Interpret your answer. 5. (3 marks Find an equation of the tangent to the curve y = 23 Inx2 at (e, e3). Grade: 22 O 100%4~0 . 4 X F4 C PrtSc nsert Delete F5 F6 F7 F8 F9 F10 F11 F12 Impr Ecr. Ins supp 4 G 5 8 2 9 3 O 1/4 1/2 = 3/4 R

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