<span>The decay of 277 mg of an isotope is described by the function
A(t)= 277e-0.019t,
where t is time in years.
To find the amount left after 64 years,
We substitute t = 64 in the expression.
</span>A(t=64)= 277e-0.019(64)
or A(t=64) = 277 * e-1.216
= 277 * 0.29
= 82 mg
basicly it is addition add 50 cent 4 times then add the dolars to that witch will get you to 6.00 bucks add the taxes witch is 5 bucks and 50 cent so 10.50 is your ansewer
Answer:
☑ Answer is 6
Step-by-step explanation:

» But this is a ratio, so it can be expressed in terms of fractions:

» Divide both the denominator and numerator by 9:

These points are reflective off of the y-axis. (9,2/5) reflected over the y-axis is (9,-2/5)