2 years ago

Find the rule. Solve for n

Mathematics

1 answer:

Serga [27]2 years ago

3 0

Is there more to this question?

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Which statement best describes f(x)= -2 √x-7 +1 –6 is in the domain of f(x) but not in the range of f(x). –6 is not in the domai

Archy [21]

Answer:

B. -6 does not belong to the domain but belongs to the range of f(x).

Step-by-step explanation:

We have the function, $f(x)=-2\sqrt{x-7}+1$ .

So, the domain of the function is obtained when $x-7\geq 0$ i.e. $x\geq 7$

That is, the domain is {x | x≥ 7}.

Now as we have,

$x\geq 7$ → $x-7\geq 0$ → $\sqrt{x-7} \geq 0$ → $-2\sqrt{x-7} \leq 0$ → $-2\sqrt{x-7}+1 \leq 1$ .

That is, $f(x)\leq 1$

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Thus, we can see that,

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3 years ago

Which of these is a common characteristic of cnidarians?

Sergio039 [100]

Hello there,

Which of these is a common characteristic of cnidarians?

All Cnidarians have tentacles with stinging cells in their tips which are used to capture and subdue prey.

Therefore, your answer would be
They have tentacles with stinging cells. (OptionB)

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