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VMariaS [17]
3 years ago
9

Given a = 2i+j – 2k b= -1 – 7j+k Find a x b

Mathematics
1 answer:
castortr0y [4]3 years ago
7 0

Step-by-step explanation:

a = 2i + j - k

b = -1 -7j + k

a × b = (2i + j - k) (-1 + 7j + k)

-2i + 14ij + 2ik - j + 7j^2 + jk + k -7jk - k^2

-2i + 14ij + 2ik -j +7j^2 +jk - 7jk + k - k^2

-2i + 14ij + 2ik - j +7j^2 - 6jk + k - k^2

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<span>y-6=-2 (x-7) 

Start by distributing..

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y = - 2x + 20 

Slope of this equation is -2</span>
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Given the function: f(x) = x2 – 2x How can you restrict the domain so that f(x) has an inverse? What is the equation of the inve
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Answer:

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Step-by-step explanation:

<u><em>The question in English is </em></u>

An expanding mobile phone company handled eight hundred and fifty thousand calls a day during the quarter. In the next quarter it expects to reach one million and increase quarterly by the same amount over the next two years. How many daily calls do you expect to handle in two years?

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7 0
3 years ago
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Answer:

the answer is B

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Step-by-step explanation:

to get the -2x I did --->

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