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just olya [345]
2 years ago
13

Tony is reseeding the front lawn. The lawn covers 2,500 square feet and grass seed is $15.98 for each 7-pound bag. Each pound of

grass seed covers 150 square feet. What is the total cost of the project?l
Mathematics
2 answers:
Phantasy [73]2 years ago
8 0

Answer:271.66$

Step-by-step explanation:

AlladinOne [14]2 years ago
3 0
It’s 271.66 I hope this help you goood luck
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Bas_tet [7]
180°. The answer is 180° because it is a straight line rather than being curved/bent.
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3 years ago
The population of blackbirds in a park is counted every year.
user100 [1]

Answer:

the original population was 425

Step-by-step explanation:

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Lawrence just got a $1,500 bonus and is debating between buying a new computer for $700 and buying a home theater for $1,200. He
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7 0
3 years ago
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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
3 years ago
How I do this someone ples help I need help with 25 and 27.
marta [7]

Number 15 is no solution.

Number 27 is that x has to be between -2 or 2.

This could be explained as -2≤x≤2

8 0
3 years ago
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