For the following exercises, use both Newton’s method and the secant method to calculate a root for the following equations. Use a calculator or computer to calculate how many iterations of each are needed to reach within three decimal places of the exact answer. For the secant method. use the first guess from Newton's method. 459. f ( x ) = x 3 + 2 x + 4 , x 0 = 0
For the following exercises, use both Newton’s method and the secant method to calculate a root for the following equations. Use a calculator or computer to calculate how many iterations of each are needed to reach within three decimal places of the exact answer. For the secant method. use the first guess from Newton's method. 459. f ( x ) = x 3 + 2 x + 4 , x 0 = 0
For the following exercises, use both Newton’s method and the secant method to calculate a root for the following equations. Use a calculator or computer to calculate how many iterations of each are needed to reach within three decimal places of the exact answer. For the secant method. use the first guess from Newton's method.
A cup of hot coffee initially at 95°C cools to 80°C in 6 min while sitting in a
room of temperature 21°C. By Newton's law of cooling, the temperature of the hot coffee
is T(t) = M - Ce-kt. Determine the value of C and K.
Can someone please help me with the last part of this question? I thought that I was supposed to use the formula -b/2a but I am getting the wrong answer.
Image attached,
Thank You!
Suppose a cup of coffee is poured from a freshly-brewed pot and left to cool in a 75-degree room. Let the temperature (in °F) of the coffee be given by the function
T(t) = 105(0.9634)^t + 75
where t is the time in minutes (t ≥ 0) the cup of coffee has been cooling after being poured.
Use the equation T(t) = 100 to complete the following.
a.) Use Newton’s method with an initial guess of t1 = 20 to estimate the solution to the equation, correct to six decimal places.
(hint: Newton’s method only works for equations of the form f(x) = 0)
b.) Interpret the solution from part (a) in context.
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