Answer:
Look below
Step-by-step explanation:
Sigma (summation) and Pi (product) notation are used in mathematics to indicate repeated addition or multiplication
Hope this helps
Answer:
the answer is -8.
Step-by-step explanation:
hope this helps!
Answer:
E. y/3
Step-by-step explanation:
Read and follow:
Y DIVIDED BY 3
Y ÷ 3
or just
Hope this helps
~R3VO
Answer:
hi im here to help a kid that ask me to help him
19) C
20) C
1) B
Step-by-step explanation:
If the half-life is t, then every t days, the amount of the radioactive isotope will be cut in half.
(1/2)^(number of half-lives) = 3%
number of half-lives = ln(0.03) / ln(0.5)
This gives the number of half-lives as 5.06.
Then 300 days = (5.06)(length of 1 half-life)
length of 1 half-life = 300 / 5.06 = 59.29 days
