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lapo4ka [179]
3 years ago
5

I need help there’s more than one answer .

Mathematics
1 answer:
myrzilka [38]3 years ago
5 0

Answer:

a

Step-by-step explanation:

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The birth rate of a population is b(t) = 2300e0.021t people per year and the death rate is d(t)= 1450e0.018t people per year, fi
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Answer:

38,674.This area represents the increase in population over a 10-year period.

Step-by-step explanation:

When graphed over the interval 0 ≤ t ≤ 10, the birth rate is more than the death rate. This means the area between the two curves is the amount of births subtract the amount of deaths. This results in an area which means the increase of the population.

The birth rate is graphed in green and the death rate is graphed in blue.

To find the area, take the integral of the difference of the functions:

\int\limits^{10}_0 {2300e^{0.021t} - 1450e^{0.018t} } \, dt \\\\\frac{2300e^{0.021t}}{0.021} -  \frac{1450e^{0.018t}}{0.018} \\\\(\frac{2300e^{0.21}}{0.021} -\frac{1450e^{0.18}}{0.018} ) - (\frac{2300}{0.021}- \frac{1450}{0.018} ) \\\\135117.12 - 96442.51 \\\\38,674

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3 years ago
Graph x=-4 how is that line placed on the coordinate system
Vesna [10]
A vertical line on the value x = -4
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Dados los intervalos A=]-2;2[ ,B=[0;5[ y C=]-∞;1], determine el intervalo que resulta de operar: (A∩B)-C
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Answer: ]1, 2[

Step-by-step explanation:

A \cap B=[0; 2[\\\\(A \cap B)-C=]1, 2[

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2 years ago
1. A quadratic function of the form 'y ax bx c = ++ has a leading coefficient, a, that is positive and a turning
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Step-by-step explanation:

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3 years ago
Kay added 253 + 14 and got a sum of 393. What did she do wrong? Check all that apply.
SashulF [63]

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She did not correctly add up the numbers

Step-by-step explanation:

253 + 14 = 267

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3 years ago
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