2 years ago

Please answer these for me !

Mathematics

1 answer:

levacccp [35]2 years ago

5 0

Answer:

no i will not. hdjsjdjdidididididjjdjdjdiwkd

Step-by-step explanation:

DUMMY

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They is 1440 cubic inches and the area of the base is 144 what is the hight

HACTEHA [7]

To find the volume of something, you do the area times the height. In this case you already know the volume so you solve it like this:

(x represents the height since you don't know the value)

1440= 144 * x

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1440/144= 144x/144

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3 years ago

In 2012, the population of a city was 6.27 million. The exponential growth rate was 1.47% per year.

Tcecarenko [31]

Answer:

a) $a(t)= 6.27e^{0.0147*t}$

b) 6.84 million

c) 2028.52

d) 47 years

Step-by-step explanation:

a)Here we know standard exponential growth rate is

$a(t)= ae^{k*t}$

In this put t=0 and a(t)=6.27 million

thus we get a = 6.27 million

now $\frac{da}{dt}=a(t)k$

this is equal to(in 2012)= $\frac{1.47}{100}*=0.0147$

b)Put t = 6

we get

$a(t)= 6.27e^{0.0147*6}$

=6.84 million

c) $8 = 6.27e^{0.0147*t}$

take log both sides

we get 16.52 years

d) $2*6.27=6.27e^{0.0147*t}$

take log both sides we get 47 years to get double the current population.

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