Which of these situations end in a net result of O2 Select all that apply. a. The plane rose to an altitude of 1000 feet. It then rose
another 1000 feet.

b. I deposited $50 in the bank, then I withdrew $50.

c. Lisa had $20 and gave her friend $15.

d. The temperature was 20° and then fell -20°

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

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

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.