Two thousand ounces of a radioactive substance are stored in a radioactive container. The amount in the substance that left is after t years can be modeled by equation y=200e^-0.00043t. Where y is the amount of substance left after t years. Approximately how many years will it take until 50 ounces of this substance remains? А
58 years
B
1,196 years
C
3,725 years
D
8,579 years

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.

irrational, cannot