Mathematics, 08.07.2020 01:01 sunflowerdaisy35
college algebra - please help The half-life for thorium-227 is 18.72 days. The amount A (in grams) of thorium-227 after t days for a 10-gram sample is given by A(t)=10β 0.5^t/18.72 How long will it take before 4 grams of thorium-227 is left in the sample? Round your answer to the hundredths place. _days
Answers: 1
Mathematics, 21.06.2019 18:30
Nick has box brads. he uses 4 brads for the first project. nick letβs b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.
Answers: 3
Mathematics, 21.06.2019 19:00
What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2
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Mathematics, 21.06.2019 21:00
Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction
Answers: 3
Mathematics, 22.06.2019 00:00
If (x + 8) is a factor of f(x), which of the following must be true? both x = β8 and x = 8 are roots of f(x). neither x = β8 nor x = 8 is a root of f(x). f(β8) = 0 f(8) = 0
Answers: 3
college algebra - please help The half-life for thorium-227 is 18.72 days. The amount A (in grams) o...
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