It might be 3/4, 6/5, 9/6, 12/7, 15/8
Answer:
negative
Step-by-step explanation:
as x increases y decreases
that’s negative
Answer:
Percentage of (226Ra) after 900 years is 68%
Step-by-step explanation:
Let P(t) be the amount of (226Ra) present at any time t
Half life of (226 Ra) = 1599 years
If P₀ is initial amount of (226 Ra) then after 1599 years
P(1599)=P₀/2
Decay i amount of radioactive substance is related to time t as

To find value of k

Percentage of radioactive element is:
Amount after 900 years
Answer:
-9x^2+911x-202
Step-by-step explanation:
You will need to multiply each term in the parenthesis with each term in the other parenthesis.
Answer:
221
Step-by-step explanation:
Make a proportion.
182/14 = x/17
182 x 17 divided by 14 is 221