Solve the problem.Strontium 90 decays at a constant rate of 2.44% per year. Therefore, the equation for the amount P of strontium 90 after t years is P = P0 e-0.0244t. How long will it take for 15 grams of strontium to decay to 5 grams? Round answer to 2 decimal places.
A. 4.50 years
B. 450.25 years
C. 40.50 years
D. 45.03 years.
Answer: D
Mathematics
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Round as indicated.8895 to the nearest hundred
A. 8900 B. 8800 C. 8890 D. 9000
Mathematics
Solve. When necessary, round answers to two decimal places.Keith billed a total of 43,200 minutes to one of his company's clients. How many days was this?
A. 720 days B. 1800 days C. 30 days D. 102.86 days
Mathematics
Solve the equation. Express radicals in simplest form.
2 = 12
A. 
B. {35 + 14
, 35 - 14
}
C. {-35 + 14
, -35 - 14
}
D. {14
+ 35 , 14
- 35}
Mathematics
Fill in the blank with one of the words or phrases listed below.
A polynomial with exactly 3 terms is called a 
.
A. binomial B. term C. trinomial D. monomial
Mathematics