1. Ethan ran food vendors stands at two different water parks.
Ethan wanted to compare the mean amount of money between
the two stands. Each stand has eight cash registers. He thinks
that there will be a greater variability in the indoor water park
as compared to the outdoor water park.
Indoor Water Park - Number of dollars in the registers:
55, 47, 36, 25, 50, 75, 63, 60
Outdoor Water Park - Number of dollars in the registers:
45, 49, 53, 20, 62, 50, 58, 70

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

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Ihave trouble finding the nth term of a linear sequence