Answers: 3
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 23:10
Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?
Answers: 2
Mathematics, 22.06.2019 05:30
Use the coordinates of the labeled point to find a point-slope equation of the line (3 -5)
Answers: 3
What is the geometric representation of a+b=c...
Health, 23.10.2020 23:30
Mathematics, 23.10.2020 23:30
Chemistry, 23.10.2020 23:30
Social Studies, 23.10.2020 23:30
Mathematics, 23.10.2020 23:30
Mathematics, 23.10.2020 23:30
Chemistry, 23.10.2020 23:30
Social Studies, 23.10.2020 23:30
Chemistry, 23.10.2020 23:30
Chemistry, 23.10.2020 23:30
Mathematics, 23.10.2020 23:30
Mathematics, 23.10.2020 23:30