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Minchanka [31]
3 years ago
12

Evaluate x-2 for x = -3.

Mathematics
1 answer:
Katen [24]3 years ago
5 0
I think the answer is -3-2= -5
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What is a solution for 11/12
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It is either 11/12 or 0.91666666667.....

Step-by-step explanation:

Because this can not be actually divided into a "number" like 2 or 5, we can only get a approximate. Like the top answer.

Round to the nearest ten is 0.9

Round it to nearest hundredths is 0.92

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A multiple choice test consists of 100 questions. A correct answer is worth 2 marks, while an incorrect is worth -1 marks. If a
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A homeowner hires a mason to lay a brick border around a rectangular patio that measures 8 ft by 10 ft. If the total area of the
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3 years ago
Help with this linear algebra question
JulijaS [17]

Check what the transformation does for each vector in the standard basis of R²<em> </em>:

<em>T</em> (1, 0) = (5, 2)

<em>T</em> (0, 1) = (-4, 0)

Now compute the weights <em>a</em>, <em>b</em> and <em>c</em>, <em>d</em> such that

<em>a</em> <em>T</em> (1, 0) + <em>b</em> <em>T</em> (0, 1) = (-2, 1)

<em>c</em> <em>T</em> (1, 0) + <em>d</em> <em>T</em> (0, 1) = (-1, 1)

\left[\begin{array}{cc|c}5&-4&-2\\2&0&1\end{array}\right]\sim\left[\begin{array}{cc|c}1&0&\frac12\\\\0&1&\frac98\end{array}\right]\implies a=\dfrac12,b=\dfrac98

\left[\begin{array}{cc|c}5&-4&-1\\2&0&1\end{array}\right]\sim\left[\begin{array}{cc|c}1&0&\frac12\\\\0&1&\frac78\end{array}\right]\implies c=\dfrac12,d=\dfrac78

Then the matrix <em>A'</em> is

A'=\begin{bmatrix}\frac12&\frac12\\\\\frac98&\frac78\end{bmatrix}

8 0
3 years ago
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