State the empirical rule as specialized to variables.
for any variable whose distribution the following properties hold. answer options: is triangular, is uniform, is bell shaped
property 1: approximately all possible observations lie within one standard deviation to either side of the mean.
property 2: approximately of all possible observations lie with in two standard deviations to either side of the mean.
property 3: approximately of all possible observations lie within three standard deviations to either side of the mean.
a. 89%, 99.7%, 100%, 75%, 95%, 68%
b. 99.7%, 68%, 95%, 100%, 75%
c. 95%, 99.7%, 100%, 68%, 89%

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d.q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12

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

What is a possible solutions of the x> 3?