Mathematics, 09.07.2019 19:50 demarpratt1270
Xwhich polynomial represents (5x2 + 3x – 4)(2x + 3)? a 10x3 + 20x2 + x – 12 b 10x3 + 21x2 + x – 12 c 10x3 + 24x2 + x – 12 d 10x3 + 5x2 + x – 12
Answers: 1
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 17:00
Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.
Answers: 1
Mathematics, 21.06.2019 20:00
You wanted to draw an enlargement of design that printed on a card that is 4 in by 5
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Mathematics, 21.06.2019 21:30
Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?
Answers: 3
Xwhich polynomial represents (5x2 + 3x – 4)(2x + 3)? a 10x3 + 20x2 + x – 12 b 10x3 + 21x2 + x – 12...
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