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mackaylabarnes22
21.11.2020 •
Mathematics
PLZZZ HELPPP *look at picture*
A ABC is a dilation of A JHG centered at the origin.
Find the scale factor of the dilation.
A. 3
B. 4
C. 2
D. 8
Solved
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Ответ:
2
Step-by-step explanation:
(4,-4) and (8,-8) you divide 8 by 4 and you get 2 then you check by multiplying 2 with the other smaller coordinates
Ответ:
A reasonable domain is d = 9 days
Step-by-step explanation:
Given:
The equation to show the growth of algae's radius is given as:
f(d) = 9(1.04)^d
Where, 'd' represents the number of days passed. So, it represents the domain of the given function f(d).
f(d) is the function representing the radius of algae after 'd' days.
Now, the radius of algae given after 'd' days = 12.81 mm
Therefore, plug in 12.81 for f(d). This gives,
12.81=9(1.04)^dfrac{12.81}{9}=(1.04)^dtextrm{Taking log on both the sides, we get:}log (\frac{12.81}{9})=\log(1.04)^dtextrm{Using log property} \log a^b=b\log a \therefore \log (\frac{12.81}{9})=d\times\log(1.04)d=\frac{\log (\frac{12.81}{9})}{\log(1.04)}d=9\ days
Therefore, after 9 days, the radius of algae is 12.81 mm.
I hope I helped!