Mathematics, 08.08.2019 00:10 666isabella666

The mass of a particular radioactive isotobe sample q(t) (in grams) at a future time t (in months) can be described by the following differential equation: dq/dt = -kq, where k > 0 is a constant. (a) show how the general solution of this differential equation can be obtained (4 marks (b) suppose the mass of a sample of this isotobe is 15g now and after 12 months the mass will be 10g. find the mass of this isotobe sample in 18 months' time. 15 marks (c) at what time will the mass of the sample in part (b) fall to lg ? [3 marks (d) what is the half-life of this radioactive isotobe? (4 marks]

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 18:00

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

Answers: 1

Answer

Mathematics, 21.06.2019 18:50

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Answers: 1

Answer

Mathematics, 21.06.2019 21:00

The description below represents function a and the table represents function b: function a the function is 5 more than 3 times x. function b x y −1 2 0 5 1 8 which statement is correct about the slope and y-intercept of the two functions? (1 point) their slopes are equal but y-intercepts are not equal. their slopes are not equal but y-intercepts are equal. both slopes and y intercepts are equal. neither slopes nor y-intercepts are equal.

Answers: 3

Answer

Mathematics, 21.06.2019 21:20

Identify one charcteristic of exponential growth

Answers: 3

Answer

You know the right answer?

The mass of a particular radioactive isotobe sample q(t) (in grams) at a future time t (in months) c...

Questions

Mathematics, 22.04.2020 23:17

What is the surface area? I'm stuck ...