5% of 20 is 1
1 Dollar added so the jeans is now 21 dollars
Answer:
false. slope is calculated by rise over run
Answer:
(-19,-3) or (5, -3)
Step-by-step explanation:
If b is located to the left side of a, then we need to add (-12) to the x-coordinate of a
b(-7+ [-12],-3) = b(-19,-3)
If b is located to the right side of a , then we need to add 12 to the x-coordinate of a.
b( -7+ 12, -3)= b(5 , -3)
Answer:
The bone is 14572 years old.
Step-by-step explanation:
There is 17% as much Carbon-14 in the ancient bones as from current bones and the decay constant is given as 0.0001216 for time in years.
The equation for radioactive decay is N = N₀ e^(-λt)
where t = time in years
λ = decay constant
N = final amount of carbon
N₀ = initial amount of carbon.
There is 17% as much Carbon-14 in the ancient bones as in current bones. So,
N = 17% of N₀
N = 0.17N₀
So, N/No = 0.17.
N = N₀ e^(-λt)
N/N₀ = e^(-λt)
0.17 = e^(-0.0001216t)
ln (0.17) = -0.0001216t
-0.0001216t = -1.7719568
t = -1.7719568/-0.0001216
t = 14572 years
Answer: 15
Step-by-step explanation: 40 x 0.25 = 10 then 10 - 25 = 15
