Answer:
Step-by-step explanation:
Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this in 33 days, while isot
ope B does this in 43 days. What is the approximate difference in the half-lives of the isotopes?
a 3 days
b 10 days
c 13 days
d 33 days
a 3 days
b 10 days
c 13 days
d 33 days
2 answers:
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Answer:
y = 7
Step-by-step explanation:
calculate the slope m using the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 5, 10) and (x₂, y₂ ) = (3, y)
m = =
For this to equal -
since the denominators are equal, equate the numerators
y - 10 = - 3 ( add 10 to both sides )
y = 7