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likoan [24]
3 years ago
11

What is the answer for r if the equation is

Mathematics
1 answer:
Vlad [161]3 years ago
7 0

9514 1404 393

Answer:

  r = √(V/(πh))

Step-by-step explanation:

To solve for r, "undo" what has been done to r. The "undo" is generally in the reverse order. Here, we have ...

  • r is squared
  • the square is multiplied by πh

To undo these operations, we ...

  V/(πh) = r² . . . . . . . . divide by πh

  √(V/(πh)) = r . . . . . . take the square root

  r = √(V/(πh))

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Answer:

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Step-by-step explanation:

x² + 6x + 9 = 12 → x² + 6x - 3

Since this Quadratic Expression is unfactorable, apply the <em>Quadratic</em><em> </em><em>Formula</em>:

x = -b ± \frac{\sqrt{{b}^{2} - 4ac}}{2a}

-6 ± \frac{\sqrt{{6}^{2} - 4(1)(-3)}}{2(1)} =   -6 ± \frac{\sqrt{36 + 12}}{2} = -6 ± \frac{\sqrt{48}}{2} \\ \\ -3 ± 2\sqrt{3}

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½[4√3] = 2√3

Then attach half of -6 to it as well [-3]:

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I am joyous to assist you anytime.

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2 years ago
This is so confusing please help asap !
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Find the average rate of change for fx) = x2 – 3x – 10 from x = 4 to x = 6.
Leviafan [203]

Answer:

7

Step-by-step explanation:

The rate of change is defined as

f(x2) - f(x1)

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x2-x1

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Substitute the values into the expression

8 -  -6

--------------------

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3 years ago
7 + 7 + (-1) = ?<br><br>A. 16<br>B. 10<br>C. 13<br>D. 7
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Hope this helps :)
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Answer:

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Step-by-step explanation:.

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