1. A circulate steel plate is heated over a fire in such a way that its radius increases at a rate of 0.05 inches/minute

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1 A Circulate Steel Plate Is Heated Over A Fire In Such A Way That Its Radius Increases At A Rate Of 0 05 Inches Minute 1 (26.92 KiB) Viewed 33 times

1. A circulate steel plate is heated over a fire in such a way that its radius increases at a rate of 0.05 inches/minute. At what rate is the plate's area increasing when the radius is 20 inches? Follow the 6 steps given in Section 3.10. Step 1. Drow a picture and name the variables and constants. Use t for timo Assume that all variables are differentinble functions of time. Step 2. Write down the numerical information (in terms of the symbols you have chosen). Step 3. Write down what you are asked to find (sually a rate, expressed as a derivative) # Step 4. Write an equation that relates the variables. You may have to combine two or more equations to get a single oquution that relates the variable whose rate you want to the variables whose rates you know Step 5. Differentiate with respect to t. Then express the rate you want in terms of the rate and variables whose values you know Step 6. Evaluate. Use known values to find the unknown rate.