Mathematics, 10.12.2020 01:20 hunndo9248

SLA How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 550 e - 2111, where t is the time in years? Round your answer to the nearest hundredth year. A. 33.19 years OB. 116.05 years O C. 29.9 years OD. 3.29 years

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:00

Pj is decorating pupcakes for rocky's birthday party. her color scheme is black, purple, and green. she will use this spinner to determine the color of sprinkles on each pupcake. which model shows the probability of randomly landing on each color?

Answers: 3

Answer

Mathematics, 21.06.2019 19:10

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Answers: 1

Answer

Mathematics, 21.06.2019 19:50

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .

Answers: 3

Answer

Mathematics, 21.06.2019 20:00

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

Answers: 1

Answer

You know the right answer?

SLA How long will it take a sample of radioactive substance to decay to half of its original amount,...

Questions

Mathematics, 10.12.2020 23:30

21 Which equation is equivalent to 2 x + 4? A x + x + 1 + 1 + 1 B 1 + 1 + 1 + x C x + x + x + x D + x +4...