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4 years ago

Given f(x) = 2x2+4x−6, evaluate f(−2).

Mathematics

1 answer:

Marina86 [1]4 years ago

5 0

Answer:

Step-by-step explanation:

f(x)=2x^2+4x-6

f(-2)=2(-2)^2+4(-2)-6

=-4^2-8-6

= 16-8-6

=8-6

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Determine whether f(x) = 5x+1/x and g(x)= x/ 5x+1 are inverse functions explain how you know. please explain in steps or worded

Len [333]

Hello from MrBillDoesMath!

Answer:

Discussion:

If the functions are inverses, then f(g(x)) = x for appropriate x. Consider x = 1.

g(1) = 1/ (5(1) + 1) = 1/6

f(g(1)) = f (1/6) = 5(1/6) + 1/ (1/6) = 5/6 + 6 = 6 5/6 <> 1

Conclusion: f(g(1)) <> 1 so the functions are not inverses

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4 years ago

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Answer:

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Step-by-step explanation:

2 by 2 is 4

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3 years ago

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3 years ago

Kareem wrote the values shown below.

grandymaker [24]

Answer:

Option D is correct.

$\lfloor 4.8 \rfloor$ and $\lceil 3.2 \rceil$

Step-by-step explanation:

Floor function states that the greatest integer that is less than or equal to x.

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Ceiling function states that the least integer that is greater than or equal to x.

It is represented by: $\lceil x \rceil$

As per the statement:-

Kareem wrote the values show below:

$\lceil 3.2 \rceil$ , $\lfloor 2.7 \rfloor$ , $\lceil 2.9 \rceil$ and $\lfloor 4.8 \rfloor$ .

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$\lceil 3.2 \rceil$ = 4

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From the given options only pair which is equivalent is:

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3 years ago

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Answer: 58, 122

Step-by-step explanation:

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