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Solnce55 [7]
3 years ago
10

Add the following lengths: 12' 11" + 11' 3”

Mathematics
1 answer:
Vesna [10]3 years ago
7 0

Answer:

24'2

Step-by-step explanation:

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A water tank is filled to its capacity. It has a leak at the bottom through which water leaks at a constant rate. If y represent
Whitepunk [10]

Answer:

The answer is B.

Step-by-step explanation:

The tank initially had 1,200 gallons of water, which is leaking at the rate of 2.5 gallons per hour.

7 0
2 years ago
Find a vector function that represents the curve of intersection ofthe two surfaces. The cylinder
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Answer:

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Step-by-step explanation:

3 0
3 years ago
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4TH TIME ASKING THIS!!! Please help me! Someone pleaseeee. I need the correct answers. I don’t want to fail
Alexeev081 [22]

Answer:

The functions are inverses; f(g(x)) = x ⇒ answer D

h^{-1}(x)=\sqrt{\frac{x+1}{3}} ⇒ answer D

Step-by-step explanation:

* <em>Lets explain how to find the inverse of a function</em>

- Let f(x) = y

- Exchange x and y

- Solve to find the new y

- The new y = f^{-1}(x)

* <em>Lets use these steps to solve the problems</em>

∵ f(x)=\sqrt{x-3}

∵ f(x) = y

∴ y=\sqrt{x-3}

- Exchange x and y

∴ x=\sqrt{y-3}

- Square the two sides

∴ x² = y - 3

- Add 3 to both sides

∴ x² + 3 = y

- Change y by f^{-1}(x)

∴ f^{-1}(x)=x^{2}+3

∵ g(x) = x² + 3

∴ f^{-1}(x)=g(x)

∴ <u><em>The functions are inverses to each other</em></u>

* <em>Now lets find f(g(x))</em>

- To find f(g(x)) substitute x in f(x) by g(x)

∵ f(x)=\sqrt{x-3}

∵ g(x) = x² + 3

∴ f(g(x))=\sqrt{(x^{2}+3)-3}=\sqrt{x^{2}+3-3}=\sqrt{x^{2}}=x

∴ <u><em>f(g(x)) = x</em></u>

∴ The functions are inverses; f(g(x)) = x

* <em>Lets find the inverse of h(x)</em>

∵ h(x) = 3x² - 1 where x ≥ 0

- Let h(x) = y

∴ y = 3x² - 1

- Exchange x and y

∴ x = 3y² - 1

- Add 1 to both sides

∴ x + 1 = 3y²

- Divide both sides by 3

∴ \frac{x + 1}{3}=y^{2}

- Take √ for both sides

∴ ± \sqrt{\frac{x+1}{3}}=y

∵ x ≥ 0

∴ We will chose the positive value of the square root

∴ \sqrt{\frac{x+1}{3}}=y

- replace y by h^{-1}(x)

∴ h^{-1}(x)=\sqrt{\frac{x+1}{3}}

4 0
3 years ago
Beginning at sunrise, the temperature rose 2.8 degrees per hour.
Dahasolnce [82]
19.18 / 2.8 = 6.85

So answer is D.6.850 h
6 0
3 years ago
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The center of a circle is at (-2, 3) and point (4,6) is on its circumference.
Lostsunrise [7]

Answer: i don’t know

Step-by-step explanation:

yes

8 0
3 years ago
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