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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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Natalka [10]

Answer: Its a trick question

Step-by-step explanation:

I did this yesterday

3 0
3 years ago
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What is the answer A B C or D
Vanyuwa [196]

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edge = 8.5

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Simplify. Follow PEMDAS

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3 0
3 years ago
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If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(–2)?
Vedmedyk [2.9K]
F(x) = 8 - 10x

g(x) = 5x + 4

Finding (fg)(-2).

First let us find fg(x),  this is the same as f(g(x))

f(g(x))

f(5x + 4)

Recall, f(x) = 8 - 10x, therefore f(5x + 4) would be such that anywhere we see x in the f(x), we replace it with 5x + 4

f(x) = 8 - 10x

f(5x +4) =  8 - 10(5x + 4)

             =  8 - 50x - 40

             = -50x + 8 - 40

             =  -50x - 32

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fg(-2) = -50*(-2) - 32 = 100 - 32 = 68

Therefore fg(-2) = 68

I hope this helped.
5 0
3 years ago
What is the distance between the points (-1, 8) and (5, 8) in the coordinate plane?
natta225 [31]
The answer should be 6 units. -1 > 0 > 1 > 2 > 3 > 4 > 5 : 6 units
8 0
3 years ago
I need help with #3 and #4 part b please help​
Svetradugi [14.3K]
<h3>Answer:</h3>

3)  likely

4)  1/2; equally likely

<h3>Step-by-step explanation:</h3>

3) You are being asked to translate a numerical value to a subjective statement. There are no hard-and-fast rules for this. Generally, the meanings of the terms you're asked to choose from are ...

  • impossible: probability is zero. The outcome cannot occur.
  • unlikely: chances are less than even; often, "unlikely" means a probability of 10%, 5%, 1% or lower, depending on the context.
  • equally likely: probability is near 50%
  • likely: more likely than not. Again, this depends on the context.
  • certain: probability is 1. There is no chance the outcome will not occur.

An 80% probability is greater than 50%, so might reasonably be called "likely."

___

4) a. Four of the eight numbers are even, so the probability of obtaining an even number at random is 4/8 = 1/2.

  b. A probability of 50% might reasonably be called "equally likely", as the probability the event will occur is equal to the probability it won't.

4 0
3 years ago
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