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qwelly [4]
2 years ago
12

*WILL GIVE BRAINLIEST*

Mathematics
1 answer:
andre [41]2 years ago
7 0
Typical bone is made up of D.
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In a ABC, BD is perpendicular to AC.The dimensions are shown in centimeters. What is the lenght, in centimeters, of AC?
liq [111]
I need to know the dimensions to solve. Ex: "Line AC is 2.5 centimeters"
My bad - should've asked that under "Ask For Details."
Sorry :(
4 0
3 years ago
How to determine if the columns of a matrix are linearly independent?
astra-53 [7]
Let's consider an arbitrary 2x2 matrix as an example,

\mathbf A=\begin{bmatrix}\mathbf x&\mathbf y\end{bmatrix}=\begin{bmatrix}x_1&y_1\\x_2&y_2\end{bmatrix}

The columns of \mathbf A are linearly independent if and only if the column vectors \mathbf x,\mathbf y are linearly independent.

This is the case if the only way we can make a linear combination of \mathbf x,\mathbf y reduce to the zero vector is to multiply the vectors by 0; that is,

c_1\mathbf x+c_2\mathbf y=\mathbf 0

only by letting c_1=c_2=0.

A more concrete example: suppose

\mathbf A=\begin{bmatrix}1&2\\4&8\end{bmatrix}

Here, \mathbf x=\begin{bmatrix}1\\4\end{bmatrix} and \amthbf y=\begin{bmatrix}2\\8\end{bmatrix}. Notice that we can get the zero vector by taking c_1=-2 and c_2=1:

-2\begin{bmatrix}1\\4\end{bmatrix}+\begin{bmatrix}2\\8\end{bmatrix}=\begin{bmatrix}-2+2\\-8+8\end{bmatrix}=\mathbf 0

so the columns of \mathbf A are not linearly independent, or linearly dependent.
8 0
2 years ago
Which expression is equivalent to 6(x – 4)?
vodka [1.7K]
The answer is C. 6x-24. 

<span>Distribute the 6 to both terms in parentheses: 6(x)-6(4) </span>
<span>Final Answer:6x-24</span>
7 0
3 years ago
Read 2 more answers
I need help with that​
Digiron [165]

9514 1404 393

Answer:

  AC ≈ 7.3

Step-by-step explanation:

Corresponding sides of similar triangles are proportional.

  AC/BC = DF/EF

  AC/18 = 15/37 . . . . fill in the given values

  AC = 18(15/37) . . .  multiply by 18

  AC ≈ 7.3

4 0
3 years ago
Those are 2 separate questions please help thank you.​
AysviL [449]

Answer:

the screen is really blurry and  its laying on its side for some reason

Step-by-step explanation:

8 0
3 years ago
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