Need
drag the tiles to the correct boxes to complete the pairs. not all tiles will be used.
a hiker recorded the temperature at different altitudes on a mountain trail. the results are shown in the table.
altitude (feet) 1,500 2,800 3,500 4,500 5,000 6,000 8,000 8,500 9,000 9,500
temperature (°f) 75 73 72 70 66 63 60 60 57 55
calculate the approximate correlation coefficient for the data, and interpret the value to describe the correlation.

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

Which expression is rational? 6. , square root two, square root 14, square root 49

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?