Mathematics, 15.06.2021 18:30 agelafa
1. A man wants to place cobblestone on his driveway. It is a perfect rectangle that has measurements of 45 feet by 60
feet. One box of cobblestone will cover 35 square yards. If you cannot buy a partial box, how many boxes of
cobblestone will he need to purchase to cover the driveway?
Answers: 2
Mathematics, 21.06.2019 16:50
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
Answers: 1
Mathematics, 21.06.2019 17:30
Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?
Answers: 2
Mathematics, 21.06.2019 19:00
Asap its important using the information in the customer order, determine the length and width of the garden. enter the dimensions.length: feetwidth: feet
Answers: 3
1. A man wants to place cobblestone on his driveway. It is a perfect rectangle that has measurements...
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