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elixir [45]
3 years ago
11

The population of Townville in 1860 was 1500 people. The population grew at about a rate of 2.8% per year until 1960. What was t

he population of Townville in 1940? When did/will the population exceed 20,000 people? Write an equation that can be used to find the population at any time t in years.
Mathematics
1 answer:
antoniya [11.8K]3 years ago
3 0

It reachs 5800 population in 1960 if i am not wrong. i'll check this out tomorrow right now i do not have enough time for it.

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The domain and range of 5x squared plus 10x what is the domain and range of f of x equals 5x squared plus 10x
liberstina [14]

Answer:

Domain:  set of all real numbers

Range:  y \geq  -5

Step-by-step explanation:

We have to find the domain and range of the function:

f(x) =5x^2+10x

This is a quadratic function, shape of a "U", that's called a parabola.

The domain is the set of x values for which the function is defined.

The range is the set of y values for which the function is defined.

Normally, any parabola in the form  ax^2+bx+c  has domain as "all real numbers". This is the case for this problem as well, thus,

Domain = set of all real numbers

Now, for the range, we have to look at the minimum value of the function. So, the range would be y values greater than or equal to the minimum number. Lets find the minimum value of this function.

We have to find the value of x for which the minimum occurs by using the formula:

x=\frac{-b}{2a} =\frac{-10}{2(5)} =-1

<em><u>Note: value of a is "5" and b is "10"</u></em>

Now, we plug this into the function to find the minimum value:

f(x)=5x^2+10x\\f(-1)=5(-1)^2 +10(-1)\\f(-1)=-5

So, the range is set of all real numbers greater than or equal to -5.

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3 years ago
MAX is equiangular If m
Evgen [1.6K]
What’s the question?
3 0
3 years ago
What is the answer to y=-0.5(0)+2
Korolek [52]
The answer is: Y= 2.
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2 years ago
Read 2 more answers
What’s -0.25 x = -1.25
grin007 [14]

Answer:

x=5

Step-by-step explanation:

divide -0.25 by -1.25

x= 5

plz give me brainliest

7 0
2 years ago
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