3 years ago

Subtract these polynomials

Mathematics

2 answers:

Sergio039 [100]3 years ago

6 0

Answer:

simplify the equation into 6x^2-x+8-x^2-2, then subtract. the answer is B.

Step-by-step explanation:

joja [24]3 years ago

6 0

Answer:

5x^2-x+6

Step-by-step explanation

6x^2 -x +8

- x^2 -2

------------------

5x^2 -x +6

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The variable Z is directly proportional to X. When X is 12, Z has the value 228. What is the value of Z when X = 18

Kisachek [45]

Here, z = kx

k = z/x
k = 228/12
k = 19

So, when x = 18,
z = 19 * 18
z = 342

In short, Your Answer would be: 342

Hope this helps!

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tamaranim1 [39]

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A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an

____ [38]

Answer: 70 meters.

Step-by-step explanation:

Observe the figure attached.

The distance between the walls is:

$DE=AD+AE$

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Both triangles are right triangles. Therefore, you can calculate the distance between the walls as following:

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$cos\alpha=\frac{adjacent}{hypotenuse}\\\\cos(60\°)=\frac{AD}{60}\\AD=30m$

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Therefore the distance between the walls is:

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