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Serggg [28]
3 years ago
6

Plz help :( what is n – 10 + 2n + 5

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer:

n-10+2n-5

to me it look like it equal 3n-5

Step-by-step explanation

step one:

add n+2n which equal to 3n

step 2:

-10+5

you add 5 do -10 which equal to -5

and when u put them together the answer will be

3n-5

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Answer:

The vertex of the function is the point (-3,-13)

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Step-by-step explanation:

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f(x)+4=x^{2}+6x

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we know that

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The x-coordinate of the vertex in this problem is equal to x=-3

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The graph decrease over the interval--------> (-∞,-3)

see the attached figure to better understand the problem

<u>5) Find the x-intercepts of the function</u>

we know that

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In this problem the x-intercepts are  

(-6.61,0) and (0.61,0)

so

The function cross the x-axis twice

see the attached figure

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Answer:

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Step-by-step explanation:

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