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kupik [55]
2 years ago
6

Please answer this if you solve it correctly! Thanks (:

Mathematics
1 answer:
OlgaM077 [116]2 years ago
5 0

Hey!

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

Solution:

= x^2 + 3 / x - 1

= x^2 + \frac{3}{x} - 1

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

Answer:

= \frac{x^3 - x + 3}{x}

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

Hope This Helped! Good Luck!

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Ricardo throws a stone off a bridge into a river below. The stone's height (in meters above the water), xxx seconds after Ricard
Dominik [7]
For this case we have the following function:
 <span>w (x) = - 5 (x-8) (x + 4)
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 </span><span>w (x) = - 5x ^ 2 - 20x + 40x + 160
 </span><span>w (x) = - 5x ^ 2 + 20x + 160
 </span><span>Then, deriving we have:
 </span><span>w '(x) = - 10x + 20
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 </span><span>0 = -10x + 20
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 </span><span>x = 2 seconds
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The maximum height that the stone will reach is:
 
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7 0
3 years ago
One leg of a right triangle measures 6 inches. The remaining leg measures 6√3 inches. What is the measure of the angle opposite
Simora [160]
30°
Here's why:
Using the well-known Pythagorian theorem we can reckon how long the hypotenuse is:
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Answer:

\left[\begin{array}{ccc}3&-1&\\-1&1/2\\\end{array}\right]

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\left[\begin{array}{ccc}1&2&\\2&6\\\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}8\\9\end{array}\right]

To get the coefficient of x and y, the inverse of the first matrix (let the first matrix be A) must be known.

A^{-1} = (1 / determinant of A) x Adjoint of A

the determinant of A = (1 x 6) - (2 x 2) = 6 - 4 = 2

Adjoint of A = \left[\begin{array}{ccc}6&-2&\\-2&1\\\end{array}\right]

A^{-1}= \frac{1}{2} \left[\begin{array}{ccc}6&-2\\-2&1\end{array}\right] = \left[\begin{array}{ccc}3&-1&\\-1&1/2\\\end{array}\right]

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2 years ago
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17.144, 18.13 19.728,
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