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3 years ago

What is the domain of the function

Mathematics

2 answers:

Delvig [45]3 years ago

6 0

5. D (the number under the square root symbol must be greater than or equal to 0.

MrMuchimi3 years ago

5 0

Answer:

The domain of the function is x>=-7

Step-by-step explanation:

The domain is all the values that x can take so the function is defined, that means we can find a value of y

The sqrt is defined only for positive values and zero. So the expression in the sqrt must satisfy that

6x + 42 >=0

We only have to find x

6x >=-42

x>=-42/6

x>=-7

So the answer is D x>=-7

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2 years ago

What is the explicit rule for this geometric sequence? 4,45,425,4125,…

gregori [183]

You did not write the question correctly but I will try to answer the question according to 2 possible interpretations of your question.

Case 1:

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Therefore, the explicit rule of the given sequence is $T_n=4\left( \frac{1}{5} \right)^{n-1}\ or\ 20\left( \frac{1}{5} \right)^n$

Case 2:

Given the geometric sequence:

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