A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive substance. After 36 hours, 95 mg of the substance remains.
How many milligrams will remain after 46 hours?

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

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

idk

step-by-step explanation:

payback

the answer is  

a.

4,624π mm2

step-by-step explanation: