Calcium 47 is used for scanning bones. If 53 grams of a 250 gram calcium 47 sample is left after 30 hours what is the half life?

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

he can buy 4lbs. of live bait and 1lbs of natural bait

step-by-step explanation:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

20 feet per second

hope i

-lavira : )