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BARSIC [14]
3 years ago
9

PLEASE HELP ME ASAPPPPP

Mathematics
1 answer:
tester [92]3 years ago
5 0

Answer:

One solution

Step-by-step explanation:

Move variables to one side and constants to the other.

x-4y=-1

2x+8y=8 Divide this by 2

x+4y=4

Add the equations

2x=-3

x=-1.5

y=-1/8

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4(x + 3) + 2x in the simplest form
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Answer:

6x + 12

Step-by-step explanation:

Distribute the 4 first. Now you have 4x + 12 + 2x. 4x + 2x are like terms and therefore they can be added. Your final simplified answer is therefore 6x + 12.

3 0
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After the fine arts booster club's soup supper, there were 120 pieces of pie left over. The leftover pie was distributed equally
Ne4ueva [31]

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Step-by-step explanation:

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Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers
slamgirl [31]

Answer:

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Step-by-step explanation:

Let be \vec u = (2,-3), its unit vector is determined by following expression:

\hat {u} = \frac{\vec u}{\|\vec u \|}

Where \|\vec u \| is the norm of \vec u, which is found by Pythagorean Theorem:

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\|\vec u\| = \sqrt{13}

Then, the unit vector is:

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The unit vector in component form is \hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}}  \right) or \hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j.

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3 years ago
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Answer:

AA~

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3 0
3 years ago
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