3 years ago

D + 3 < 12 Select one: a. d < –9 b. d < –15 c. d < 15 d. d < 9

Mathematics

1 answer:

LenaWriter [7]3 years ago

5 0

The answer would be D).

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Need help on this math problem!!!

Colt1911 [192]

Answer:

$(fof^{-1})(x)=x$

Step-by-step explanation:

Composition of two functions f(x) and g(x) is represented by,

(fog)(x) = f[g(x)]

If a function is,

f(x) = (-6x - 8)² [where x ≤ $-\frac{8}{6}$ ]

Another function is the inverse of f(x),

$f^{-1}(x)=-\frac{\sqrt{x}+8}{6}$

Now composite function of these functions will be,

$(fof^{-1})(x)=f[f^{-1}(x)]$

= $[-6(\frac{\sqrt{x}+8}{6})-8]^{2}$

= $[-\sqrt{x}+8-8]^2$

= $(-\sqrt{x})^2$

= x

Therefore, $(fof^{-1})(x)=x$

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The floor of a round hut has a diameter of 4 meters. What is the floor's circumference? Use 3.14 for .

7nadin3 [17]

Answer:

12.56

Step-by-step explanation:

C= 2 x 3.14 x 2

(the other 2 is half of the circumference)

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3 years ago

If a quadratic has x-intercepts at (-1,0) and (6,0), what would be the factored form of the equation?

Roman55 [17]

Answer:

(x+1)(x-6)

Step-by-step explanation:

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-1 is it a rational

Yuki888 [10]

Yes -1 is a rational number. We can express it as a fraction of two whole numbers

One way is -1 = -1/1

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If the radius of mars is about 13.7% of neptune's radius, what is the radius of neptune?

Sergeu [11.5K]

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3 years ago

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