30 degrees = pi/6 radians
Arc Length = (radius)(angle in radians)
6 = (radius)(pi/6)
radius = 36/pi or approx. 11.5 m
Answer:
Write in slope-intercept form, y
=
m
x
+
b
y=mx+b.
−
Step-by-step explanation:
Answer:

Step-by-step explanation:
We have been given that Radium-226, a common isotope of radium, has a half-life of 1,620 years.
We will use half life formula to solve our given problem.
, where,
,
,
.
As we are told that the sample has 120 grams, this means that a equals 120. Upon substituting our given values in half life formula we will get,

Therefore, the equation
represents the remaining amount of Radium-226 after t years.
<span>1 to 2.5 is the correct answer</span>