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pogonyaev
3 years ago
6

Please answer this asap!

Mathematics
1 answer:
777dan777 [17]3 years ago
7 0
This is an exponential equation that can be represented by the following:

f(x) = a(b)^x

In this case...

25143 = a(0.66)^3

25143 is the population after 3 hours.

3 is the amount of time in hours.

0.66 represents the percent of the population remaining after each hour (66% as there is a 34% decline each hour).

We must solve for a, which is the initial population.

First, simplify (0.66)^3 to 0.2874.

25143 = 0.2874a

Now divide both sides by 0.2874 to isolate a.

a = 87455

There were initially 87,455 people within the city. I wouldn't want to be in that place!
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What is an equivalent fraction for 4/12
const2013 [10]

Answer:1/3

its 1/3 because 4 dived by 4 = 1 and 12 dived by 4 =3 so answer is 1/3

8 0
3 years ago
Read 2 more answers
Need assistance please thanks.
Nitella [24]
I guess the answer is 66
5 0
3 years ago
How many pairs of whole numbers have 75 as their product <br><br> Show your work
Minchanka [31]
I think you mean factors? The factors of 75 are 1, 3, 5, 15, 25 and 75.<span> </span>
3 0
3 years ago
A point in the figure is selected at random. Find the probability that the point will be in the part that is NOT shaded.
creativ13 [48]

Answer:

About 20%

Step-by-step explanation:

The probability of a point on the un-shaded region will be given by;

Area of the shaded region/total area

Considering that the circles are of the same size, then the length of the square is 2d

Area of the square = 4d²

Area of the shaded = (4d² -4π(d/2)²

                                = 4d² -πd², but π = 22/7

                                = 6/7d²

Probability = (6/7d² ÷ 4d²) × 100%

                  = (6/28 d²) × 100%

                  = 21.42 %

Therefore; the answer is about 20%

3 0
3 years ago
Find the linear approximation of f(x)=lnx at x=1 and use it to estimate ln(1.38).
RideAnS [48]
\bf f(x)=y=ln(x)\qquad &#10;\begin{cases}&#10;x=1\\&#10;y=ln(1)\to y=0&#10;\end{cases}\\\\&#10;-----------------------------\\\\&#10;\left. \cfrac{dy}{dx}=\cfrac{1}{x} \right|_{x=1}\implies 1\impliedby m&#10;\\\\\\&#10;\textit{now, we know that }&#10;\begin{cases}&#10;x=1\\&#10;y=0\\&#10;m=1&#10;\end{cases}\implies y-0=1(x-1)\implies y=x-1

now, you're asked to use it when ln(1.38), which is just another way of saying x = 1.38

so set x = 1.38 and see what "y" is
5 0
3 years ago
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