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timofeeve [1]
3 years ago
12

How do you draw a triangle that has no right side

Mathematics
1 answer:
velikii [3]3 years ago
5 0
You simply draw one with an angle greater than or less than 90 degrees.
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What is the vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7?
Mandarinka [93]
<span>hello :
اthe vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7 is :
</span>(-5,7) because when : x= - 5    ...f(-5) = |- 5 + 5| + 7 = 0+ 7 = 7
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3 years ago
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For the following quadratic equation, find the discriminant.
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Step-by-step explanation:

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Show that there do not exist scalar c1 c2 and c3 c1(-2,9,6)+c2(-3,2,1)+c3(1,7,5)= (0,5,4)​
fredd [130]

This is the same as showing the following system of equations doesn't have a solution:

\begin{cases}-2c_1-3c_2+c_3 = 0 \\ 9c_1 + 2c_2 + 7c_3 = 5 \\ 6c_1 + c_2 + 5c_3 = 4\end{cases}

or in matrix form,

\begin{bmatrix}-2&9&6\\-3&2&1\\1&7&5\end{bmatrix}\begin{bmatrix}c_1\\c_2\\c_3\end{bmatrix} = \begin{bmatrix}0\\5\\4\end{bmatrix}

The quickest way to check if there is a solution is to check whether the coefficient matrix is invertible. If its determinant is 0, then it is not invertible.

And the quickest way to show that the determinant is 0 is by observing that the third row is a linear combination of the first two rows:

(-2, 9, 6) - (-3, 2, 1) = (-2 + 3, 9 - 2, 6 - 1) = (1, 7, 5)

So there are indeed no such scalars <em>c₁</em>, <em>c₂</em>, and <em>c₃</em>.

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3 years ago
Please third time asking I’ll mark brainliest
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Answer: A≈440.44

Step-by-step explanation:

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2 years ago
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Answer:

a b d

Step-by-step explanation:

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