An isosceles trapezoid has a perimeter of 60.1 miles. Its shorter base measures 13.1 miles and its longer base measures 20 miles. The two remaining sides have the same length; what is that length?​

To ? nd out how many students are unhappy with the dining hall food, you distribute a survey. which method of surveying would produce the least amount of bias in your data?

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

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu