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3 years ago

Let f(x) = 12 over the quantity of 4 x + 2. Find f(−1). (1 point)

Mathematics

1 answer:

mylen [45]3 years ago

6 0

Answer:

-6

Step-by-step explanation:

Hope I understand your "f(x) = 12 over the quantity of 4 x + 2" correctly

f(x) = 12 / 4x +2

Now so they want a f(-1), as u can see they substituted the x for - 1, therefor do that the same to the right side

f(-1) = 12/ 4(-1) + 2

f(-1) = 12 / - 4+2

= 12/ - 2

= - 6

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butalik [34]

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3 years ago

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Serga [27]

If $b=\frac1a$ , then by rationalizing the denominator we can rewrite

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Now,

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and

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$\implies a^2 - b^2 = \dfrac{\left(9\sqrt3 - 7\sqrt{11}\right) \left(7\sqrt3 - 9\sqrt{11}\right)}{64} = \boxed{\dfrac{441 - 65\sqrt{33}}{32}}$

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2 years ago

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Fiesta28 [93]

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4 years ago

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