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ser-zykov [4K]
3 years ago
9

Can someone please help me with this question?

Mathematics
1 answer:
Afina-wow [57]3 years ago
3 0
It would be the 3rd option
28x^2-7x+8x-2
Factorization: 7x(4x-1)+2(4x-1)
(7x+2)(4x-1)
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Answer:

......

Step-by-step explanation:

Length of diagonal of the rectangle=

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How do you find a unit vector that is orthogonal to both u = (1, 0, 1) v = (0, 1, 1)?
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Answer:

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Step-by-step explanation:

first we need to find a vector that is ortogonal to u and v . This vector r can be generated through the vectorial product of u and v , u X v :r=u X v =\left[\begin{array}{ccc}i&j&k\\1&0&1\\0&1&1\end{array}\right] = \left[\begin{array}{ccc}0&1\\1&1\end{array}\right]*i +  \left[\begin{array}{ccc}1&0\\1&1\end{array}\right]*j + \left[\begin{array}{ccc}1&0\\0&1\end{array}\right]*k = -1 * i + 1*j + 1*k = (-1,1,1)

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12 people will attend
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