Find the value of the standard normal random variable z, called z0 such that: (a) p(z≤z0)=0.7004 z0= .525 (b) p(−z0≤z≤z0)=0.7952 z0= (c) p(−z0≤z≤z0)=0.7206 z0= (d) p(z≥z0)=0.00677 z0= (e) p(−z0≤z≤0)=0.4634 z0= (f) p(−1.57≤z≤z0)=0.5302 z0=

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

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

F(x) = x2 − 9, and g(x) = x − 3 f(x) = x2 − 4x + 3, and g(x) = x − 3 f(x) = x2 + 4x − 5, and g(x) = x − 1 f(x) = x2 − 16, and g(x) = x − 4 h(x) = x + 5 arrowright h(x) = x + 3 arrowright h(x) = x + 4 arrowright h(x) = x − 1 arrowright