Hi!!
1) 2/3 *12
You basically do this
2/3 * 12/1 = 24/3 which = 8!
2) 13 * 1/2
= 13/1 * 1/2
= 13/2
= 6 1/2
Hope this helps!
Answer:
What are the answer choices? I would help but you didn't attach or write them.
Step-by-step explanation:
Answer:
(x+1)(x+9)
Step-by-step explanation:
using ac method
so there are 2 x so each go in a ( ) then you have to do the box method and get 9 at the right corner at the end. then get your 2 like terms combined then boom you got your answer.
Answer:
2441.95 years
Step-by-step explanation:
We can model this exponencial function as:
P = Po * (1+r)^(t/n)
Where P is the final value, Po is the inicial value, r is the rate, t is the time and n is the period of half-life.
In this case, we have that P/Po = 100% - 25.5% = 74.5% = 0.745, r = -0.5 and n = 5750, so we have that:
0.745 = (1 - 0.5)^(t/5750)
Step 1: log in both sides:
log(0.745) = (t/5750) * log(0.5)
Step 2: isolate t
t = 5750*log(0.745)/log(0.5) = 2441.95 years
