A 50 gram sample of a substance that's
used to treat thyroid disorders has a k-
value of 0.1133.
Find the substance's half-life, in days.
Round your answer to the nearest tenth.
Enter the correct answer.
N = Noekt
No = initial mass (at time t = 0)
DONE
DOO
N = mass at timet
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days

step-by-step explanation:

coldest temperature they recorded add me europa2433

europa2433

john got lost so he didn't know what to do and it was crazy because he didn't except it

step-by-step explanation:

123123 step byt step

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional