Answer:
An old bone contains 80% of its original carbon-14 in 1844.6479 years
Step-by-step explanation:
We know that
half life time of C-14 is 5730 years
so, h=5730
now, we can use formula
we can plug back h
and we get
An old bone contains 80% of its original carbon-14
so,
P(t)=0.80Po
we can plug it and then we solve for t
So,
An old bone contains 80% of its original carbon-14 in 1844.6479 years
These two angles are vertical angles. Vertical angles are congruent, so you have to make an equation.
2x + 29 = 9x - 13
7x = 42
x = 6 degrees
Answer:
Inverse Operations
Inverse operations
Division
Step-by-step explanation:
+4 on both sides
-17 both sides
Divide by 20 both sides.
Some friends went to lunch and split the bill equally. If each person paid $6.75, how many people went to lunch thinking. Use a diagram or equation to explain your thinking. The total is 27$. 27 divided by 6.75 is 4. Suppose
The third one C. Because if you just take a close look at it it make sense
