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Julli [10]
3 years ago
9

A scientist uses 3 gallon of liquid for every 6 hours he uses (blank) of a gallon each hour he works

Mathematics
2 answers:
adelina 88 [10]3 years ago
5 0

Answer:

18

Step-by-step explanation:

mina [271]3 years ago
5 0

Answer:

2 gallons per hour

Step-by-step explanation:

6 divided by 3

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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
What is the answer to this
Vika [28.1K]

Answer:

The upper one is 8, the lower one is 6

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In the figure, a line was constructed through point R perpendicular to line L. If EF = 20, then what is the length of ES?
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ES is half of EF since a chord is bisected by the radius. ES = 10
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