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GaryK [48]
3 years ago
11

You are buying boxes of cookies at a bakery. Each box of cookies costs 4 dollars. In the equation below, c represents the number

of boxes of cookies you buy, and d represents the amount the cookies will cost you (in dollars).
The relationship between these two variables can be expressed by the following equation:
d=4c
Mathematics
1 answer:
Yuliya22 [10]3 years ago
7 0
What the answer you want to find out ?
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Find a vector 3 units long in the opposite direction from v = 〈3, 1,-4).
lutik1710 [3]

Unit vector along the direction v = <3,1,-4> is :

\hat{v} = \dfrac{3i + j  -4k}{\sqrt{3^2 + 1^2 + 4^2}}\\\\\hat{v} = \dfrac{3i + j -4k}{5.1}

So, unit vector opposing the \hat{v} is :

\hat{v'} = -\hat{v}\\\\\hat{v'} = -( \dfrac{3i + j -4k}{5.1})\\\\\hat{v'} = \dfrac{-3i - j +4k}{5.1}

so, vector of magnitude 3 units in opposite direction from v is :

\vec{V} = 3\hat{v'}\\\\\vec{V} = \dfrac{3}{5.1}( -3i -j+4k)

Hence, this is the required solution.

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Step-by-step explanation:

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I would need see what your choices are to give exact answers, but I think the main idea here is to see that angles 1 and 3 are the same, and since the alternate interior angle theorem states parallel lines through a line, or another set of parallel lines, form equal angles on those positions, the lines that form those angles, p and q, must be parallel.
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order of operations

BEMDAS:

B - <em>Brackets</em>

E - <em>Exponents</em>

D - <em>Division</em>

M - <em>Multiplication</em>

A - <em>Addition</em>

S - <em>Subtraction</em>

73 • 7 - 5 = 511 - 5 = 506

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3 years ago
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