So far, all the expressions you have applied this method to have had a coefficient of 1 on the x2 term. That is a requirement for completing the square. When faced with an expression that does not meet this requirement, you must factor to make it true before applying this method. One important note is that to move a value outside of a parenthesis, it must be multiplied by the same value multiplying the parenthesis. With this note in mind, use the method of completing the square to solve the quadratic equation -2x2 + 12x = 5.

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

How can you construct perpendicular lines and prove theorems about perpendicular lines

Someone answer asap for ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?