Answer:
ztoxtis5odktdyox58z85d59d58drisi3s4id4is4usi4d5id48s48s4izrizirzirzitdotxirztoz8tx8tz85zirzirzrizt9z8rz8rzr7zey
Answer:
The fossil is 1860 years old.
Step-by-step explanation:
The equation for the amount of fossil has the following format:
In which Q(t) is the amount after t years, Q(0) is the initial amount and r is the rate of change.
Half-life of c-14 is 5730 years.
This means that 
So
So
How old is the fossil?
This is t for which
So
The fossil is 1860 years old.
Answer: 286 minutes
Step-by-step explanation:
x : # of months that has gone by
0.24x : cost of the 24 cent plan after "x" minutes
39.95 + 0.10x : cost of the 10 cent plan after "x" minutes
1. 39.95 + 0.10x > 0.24x
2. 39.95 > 0.24x - 0.10x
3. 39.95 > 0.14x
4. 285.36 > x
x must be AT LEAST 286 minutes for plan #2 (39.95 + 0.10x) to be a better deal
Answer:
A
Step-by-step explanation:
10 + 5 = 15
Answer:
21+4
Step-by-step explanation:
3 times 7=21
3 times4=12
21d+4e
