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IgorC [24]
3 years ago
7

Help me pleassssssssse

Mathematics
1 answer:
Sladkaya [172]3 years ago
4 0

Answer:

You use the slope formula and slope-intercept form y  = m x + b  to find the equation. y = 4 /3 x

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Count how many pieces there are and then seer how many is that specific Piece and for percentage make it 100% of this amount then divide the different one out
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16. Let W be the set of all vectors in R3 of the form a+2b b -3a Find a basis for Wand state the dimension of W.
Yuki888 [10]

Answer:

W=\{\left[\begin{array}{ccc}a+2b\\b\\-3a\end{array}\right]: a,b\in\mathbb{R} \}

Observe that if the vector x=\left[\begin{array}{ccc}x\\y\\z\end{array}\right] is in W then it satisfies:

\left[\begin{array}{ccc}x\\y\\z\end{array}\right]=\left[\begin{array}{c}a+2b\\b\\-3a\end{array}\right]=a\left[\begin{array}{c}1\\0\\-3\end{array}\right]+b\left[\begin{array}{c}2\\1\\0\end{array}\right]

This means that each vector in W can be expressed as a linear combination of the vectors \left[\begin{array}{c}1\\0\\-3\end{array}\right], \left[\begin{array}{c}2\\1\\0\end{array}\right]

Also we can see that those vectors are linear independent. Then the set

\{\left[\begin{array}{c}1\\0\\-3\end{array}\right], \left[\begin{array}{c}2\\1\\0\end{array}\right]\} is a basis for W and the dimension of W is 2.

7 0
2 years ago
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c

Step-by-step explanation:

4 0
3 years ago
What is the difference of 2 3/8-1 7/8
-BARSIC- [3]
2 3/8 - 1 7/8
Change to improper fractions
19/8 - 15/8 = 4/8 = 1/2
6 0
3 years ago
Read 2 more answers
Please answer this. Thank you!
Nikitich [7]

Answer:

8: 73.2 cm

10: 738 mm

Step-by-step explanation:

8: A= 12.2 (4.5 + 7.5) / 2 --> 146.2 / 2 = 73.2 cm

10: A= 36 (22 + 19) / 2 --> 1,476 / 2 = 738 mm

8 0
2 years ago
Read 2 more answers
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