Answer:
D
Step-by-step explanation:
When you add up
,
you have ,
which is what D is.
Side note:
You only add up the exponents when you multiply.
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❖ x = 32
x:50
16:25
The pattern here is divide by 2 (or if doing the opposite way, multiply by 2.)
16 x 2 = 32, so x = 32
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~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ
1 In 10 is a ratio 1:10 or 1/10. Add 1 for
1 + 1/10 = 1 1/10
Did you add the picture of the table? I do not see it :(
What you must do is evaluate the function for the given conditions and thus be able to find the constants A and k
25 = Ae ^ k (2005)
31 = Ae ^ k2010
We then have two equations with two unknowns.
Solving.
25/31 = e ^ k (2005-2010)
Ln (25/31) = k (2005-2010)
k = Ln (25/31) / (2005-2010) = 0.043
Substituting k in any of the equations:
25 = Ae ^ (0.043 * (2005))
Clearing A
A = 25 / (e ^ (0.043 * (2005))) = 9.02E-37
Then, by 2020
P = (9.02E-37) e ^ (0.043 * (2020)) = 48 million
answer
the population for 2020 will be 48 million