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Vika [28.1K]
3 years ago
10

[8] meaning. what's the [ ] mean

Mathematics
1 answer:
kotykmax [81]3 years ago
6 0
It changes it into negative 
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Between which two ordered pairs does the graph of f(x) = 1/2x2 + x – 9 cross the negative x-axis? (–6, 0) and (–5, 0) (–4, 0) an
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Answer:

Between (-6,0) and (-5,0).

Step-by-step explanation:

When it crosses the x axis, it's an x-intercept. To find the x-intercept, set y (aka f(x)) to zero. The solutions to the equation are approximately 3.36 and - 5.36. Since you're finding the negative x-intercept, you only need the negative solution - 5.36. This is in between (-6,0) and (-5,0).

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Is (2, 3) a solution to this system of equations?<br> y :<br> = x + 2<br> -1<br> y = -x + 4<br> 2
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so blue and pink = purple      Yellow and red = orange    

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2 years ago
Find the product. 1.5m6(-2m2)4
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Answer:

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Step-by-step explanation:

It looks like you want to simplify ...

  1.5m^6(-2m^2)^4=(1.5)(-2)^4(m^6)(m^{2\cdot4})\\\\=(1.5)(16)m^{6+8}=\boxed{24m^{14}}

__

The applicable rules of exponents are ...

  (a^b)(a^c) = a^(b+c)

  (a^b)^c = a^(bc)

  (ab)^c = (a^c)(b^c)

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