Answer:
45 sides
Step-by-step explanation:
If each of the interior angles is 172 degrees, then each of the exterior angles is 8 degrees. Since the sum of the exterior angles of any polygon is 360 degrees, there are 360 / 8 = 45 exterior angles and 45 sides.
F(x) + g(x) = OR (f + g)(x)
|x| + 9 - 6
|x| + 3
Answer:
my guy did you repost this as I just answered this about ten minutes ago
Answer:
a) r=-0.00012097
b)
c) 13,304.65 years
Step-by-step explanation:
a)
Q(t) satisfies the differential equation Q'(t) = rQ(t), hence
Integrating on both sides
where C is a constant. Taking the exponential on both sides
In this case, is the initial value Q(0), the amount of the initial value of carbon-14 and we have
As we know that the half-life of carbon-14 is approximately 5,730 years we have
Taking logarithm on both sides
and
b)
c)
We want to find a value of t for which
Q(t) = 20% of =
and
Answer:
2/ 10^12
Step-by-step explanation:
see image below:)