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galben [10]
2 years ago
14

Aubreys dinner cost $85 she tips the waitstaff 30% for excellent service

Mathematics
1 answer:
Pavel [41]2 years ago
4 0

Answer:

25.5

Step-by-step explanation:

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Tamara needs to buy motor oil to fill the 7 empty cylindrical barrels at her oil service center. Each barrel is 4.5 ft deep and
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addition and multiplication

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Write an equation in slope intercept form for the line thepasses through (-1,-6) and is parallel to x+3y=6
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Answer:

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Step-by-step explanation:

7 0
2 years ago
Which vector matrix represents the reflection of the vector <-1,5> across the line x = y
Arturiano [62]

Answer:

V = \left[\begin{array}{ccc}5&-1\end{array}\right]

Step-by-step explanation:

We want to reflect this 2x1 vector on the line y = x.

To make this reflection we must use the following matrix:

R=\left[\begin{array}{cc}0&1\\1&0\\\end{array}\right]

Where R is known as the reflection matrix on the line x = y

Now perform the product of the vector <-1,5> x R.

\left[\begin{array}{ccc}-1\\5\end{array}\right]x\left[\begin{array}{ccc}0&1\\1&0\end{array}\right]\\\\\\\left[\begin{array}{ccc}-1(0) +5(1)&-1(1)+5(0)\end{array}\right]\\\\\\\left[\begin{array}{ccc}5&-1\end{array}\right]

The vector matrix that represents the reflection of the vector <-1,5> across the line x = y is:

V = \left[\begin{array}{ccc}5&-1\end{array}\right]

6 0
3 years ago
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