Answer:
yeees
Step-by-step explanation:
<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
7.00
Explanation:
Area of a circle
A
=
π
r
2
, where r is the radius.
Given
A
=
154
,
⇒
154
=
π
⋅
r
2
⇒
r
2
=
154
π
=
49.02
⇒
r
=
√
49.02
=
7.00
Answer:
112 is the answer
Step-by-step explanation:
to find the value of x, you need to add both the numbers 34 and 78 to find x.
