Answer:
25.48 days
Step-by-step explanation:
For a radioactive substance, the Amount of the substance remaining A(t) is modeled by the equation

where

In the given problem:
Half Life of the Radioactive Isotope = 8
Initial Amount,
=100%=1
A(t)=11% =0.11
Therefore substituting in the model above:

The farmer need to wait for 25.48 days
Work shown above! Hope ya understand!
Answer:
Step-by-step explanation:
153+12x-3=13+x
Answer:
(4,-7) is the vertex
Step-by-step explanation:
The equation of the parabola is of the form
y= a(x-h)^2 +k
where (h,k) is the vertex
f(x) = -2(x – 4)^2 – 7
(4,-7) is the vertex
Answer:
B) 450 words in 6 minutes
Step-by-step explanation:
450 divided by 6 is equal to 75 which makes 75 words per minute. Then if you divide 300 by 4 it also is 75 words per minute.