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Evgen [1.6K]
1 year ago
6

Solve for x. round to nearest tenth. angle DEF is an equilateral triangle. hyp is 24

Mathematics
1 answer:
Arturiano [62]1 year ago
7 0

Since the triangle DEF is an equilateral triangle and x is the height of this triangle, we can use the following formula for the height of an equilateral triangle:

h=\frac{l\sqrt[]{3}}{2}

Where 'l' is the length of the triangle side.

So, using l = 13, we have:

\begin{gathered} x=\frac{13\cdot\sqrt[]{3}}{2} \\ x=\frac{13\cdot1.73}{2} \\ x=11.2 \end{gathered}

So the value of x is 11.2

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Since this line is written in point slope form, we have y-y1=m(x-x1) so our m is our slope. Here, m=3 so our slope here is 3
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Find an equation for the line parallel to 4y+16x=8 and goes through the point (6,4)
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Please help me with this AP Calculus question!!
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9514 1404 393

Answer:

  B.  3

Step-by-step explanation:

If all you want is a numerical result, sometimes a graphing calculator can provide that easily. The attachment shows it calculates the slope at x=4 to be 3.

  dy/dx = 3 at x = 4

__

The derivative of the expression can be found from the quotient formula:

  d(u/v) = (du·v -u·dv)/v²

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3 years ago
I know it’s a lot to ask but please show your work so I know how to do it. Thank you!
jonny [76]

Answer:

The answer to your question is below

Step-by-step explanation:

Use trigonometric functions to find x

13.  cos 40 = 5/x

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17.- tan 55 = 20 / x

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      x = 20 / 1.42

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18.- sin31 = x / 18

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