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polet [3.4K]
2 years ago
15

Which of these graphs represents a function?

Mathematics
1 answer:
Naddik [55]2 years ago
6 0

Answer:

B.

Step-by-step explanation:

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Tiffany is filling her daughter's pool with water from a hose she can fill the water at a rate of 1/10 gallons/second. Create at
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Answer:

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Step-by-step explanation:

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2 years ago
How do you find the x intercepts of 3x^(5/3) - 4x^(7/3)
kaheart [24]
Set the whole expression = to 0 and solve for x.

3x^(5/3) - 4x^(7/3) = 0.  Factor out x^(5/3):     x^(5/3) [3 - 4x^(2/3)] = 0

Then either x^(5/3) = 0, or 3 - 4x^(2/3) = 0.

In the latter case, 4x^(2/3) = 3. 

To solve this:  mult. both sides by x^(-2/3).  Then we have

4x^(2/3)x^(-2/3) = 3x^(-2/3),            or 4 = 3x^(-2/3).  It'd be easier to work with this if we rewrote it as

4           3
---  = --------------------
1            x^(+2/3)

Then 

4
---  = x^(-2/3).  Then, x^(2/3) = (3/4), and x = (3/4)^(3/2).  According to my     3                      calculator, that comes out to x = 0.65 (approx.)

Check this result!  subst. 0.65 for x in the given equation.  Is the equation then true?

My method here was a bit roundabout, and longer than it should have been.  Can you think of a more elegant (and shorter) solution?
7 0
3 years ago
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BaLLatris [955]

Answer:

Where is the info so we can show you

Step-by-step explanation:

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=0.42%20%5Ctimes%2075.3" id="TexFormula1" title="0.42 \times 75.3" alt="0.42 \times 75.3" align
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The answer is 31.626
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3 years ago
It takes b minutes for Sylvia's bathtub to fill with water. How many minutes will it take to fill the bathtub 3 times? Write you
N76 [4]
The expression is x=3b
3 0
3 years ago
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