It would be a, because some of the students could have really high income and some low, it’s very unpredictable, but all others will probably all be very close
Hope this helps!
47.4311, use pemdas. 10.2+(3.8x2)+(3.98x3)+(1.99x8.89)
Answer:
110
Step-by-step explanation:
In the triangle angle theorem the angles will all add up to equal 180.
180-20-50=110
I believe the Answer is A
Answer:
8923 years
Step-by-step explanation:
Half life of C-14 = 5730yrs
decay rate= 34%
Halt life (t^1/2) = (ln2) / k
5730 = (ln2) /k
k = (ln2) / 5730
k = 1.209 * 10^-4
For first order reaction in radioactivity,
ln(initial amount) = -kt
ln(34/100) = -(1.209*10^-4)t
-1.0788 = -(1.209*10^-4)t
t = -1.7088/ -1.209*10^-4
t = 8923 years
