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3 years ago

A. [-1, 1] b. [0, pi] c. [-pi/2, pi/2] d. -♾, ♾]

Mathematics

1 answer:

meriva3 years ago

6 0

f(x) = sin(x)

Domain (–∞, ∞)

Range [–1, 1]

y = arcsine(x)

y = f–¹(x)

Domain [–1, 1]

Range [–π/2, π/2]

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

Harlamova29_29 [7]

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 $r = 0.021$

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

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

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

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.

3 0

3 years ago

Can someone help please?

Serggg [28]

Answer:

lower bound: 315 litres

upper bound: 324 litres

Step-by-step explanation:

The following rules apply:

if the last digit of the number is 1, 2, 3, or 4; it is rounded down

if the last digit of the number is 5, 6, 7, 8, or 9. ; it is rounded up

So:

314 is rounded to 310

315 is rounded to 320

324 is rounded to 320

325 is rounded to 330

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2 years ago

A statue of Thomas Jefferson was made using a scale of 3 feet = 1 foot.Write an expression to represent the height of the statue

xxMikexx [17]

Expression: x divided by 3
Scale height: 19/3 = 6.33333333

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3 years ago

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An experiment consists of randomly drawing a cube from a bag containing three red and two blue cubes. List the probability of ea

telo118 [61]

The probability of getting a red cube is 3:5 the probability of getting a blue cube is 2:5

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3 years ago

How do I write 2.8 as a fraction?

ruslelena [56]

Well you see, you have 2/8, (fraction) and here is a few others,
These are COMMON. 4/16, 2/8, 6/24, etc....
You multiply the denominator and numerator by the same answer.
Thats how I think I learned it.

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2 years ago

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