The daily high temperature in Death Valley, CA, in 2003 can be modeled by T(d)= -.0018d2 + 0.657d + 50.95, where T is the temperature in degrees Fahrenheit and d is the day of the year. What was the maximum temperature in 2003, to the nearest whole degree? Just type the numerical value. You don't need to put the degree symbol or the word DEGREE.

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Nine more than four times a number is the same as one less than twice the number. find the number?

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer