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2 years ago

15

A circular garden has a radius of 3.5 feet. Leslie is installing a fence around the edge of the garden using chicken wire and ne

eds to know the circumference of the circular garden. What is the circumference of the garden?
A:10.99 ft
B:7 ft
C:38.47 ft
D:21.98 ft

1 answer:

PSYCHO15rus [73]2 years ago

3 0

Answer:

B: 7 ft

Step-by-step explanation:

the diameter is twice the radius

: 3.5 ft ×2

=7 ft

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3 years ago

In the year 2019, Lee County used approximately 55 million gallons of water. Historical trends show that each year the water dem

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Answer:

Approximately 62 gallons of water will be used by Lee County by the year 2025.

Step-by-step explanation:

The amount, in millions gallons of water, spent by Lee County, in t years after 2019, is given by the following equation:

$P(t) = P(0)(1 + r)^{t}$

In which P(0) is the amount spent on 2019 and r is the increse rate, as a decimal.

In the year 2019, Lee County used approximately 55 million gallons of water.

This means that $P(0) = 55$

Historical trends show that each year the water demand is increasing by a rate of approximately 2.1%.

This means that $r = 0.021$

So

$P(t) = P(0)(1 + r)^{t}$

$P(t) = 55(1 + 0.021)^{t}$

$P(t) = 55(1.021)^{t}$

Approximately how many million gallons of water will be used by Lee County by the year 2025?

2025 is 2025 - 2019 = 6 years after 2019. So this is P(6).

$P(t) = 55(1.021)^{t}$

$P(6) = 55(1.021)^{6}$

$P(6) = 62.3$

Rounded to the nearest millions

Approximately 62 gallons of water will be used by Lee County by the year 2025.

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3 years ago

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3 years ago