Different sizes of ribbon need to be cut to go around various shapes. All of the following sizes are in inches. , √3, 2√7, √2 (a) Without using your calculator, approximate the decimal equivalent of each number to the nearest tenth. You will need to show your work in finding the integers each fall between.
(b) Order the ribbon sizes from least to greatest.

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 values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?