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lana [24]
3 years ago
14

If f(x) = x2 – 1 and g(x) = 2x – 3, what is the domain of (f circle g) (x)? (negative infinity, infinity) Left-bracket negative

1, infinity) Left-bracket negative 5, infinity) (infinity, negative infinity)

Mathematics
1 answer:
n200080 [17]3 years ago
5 0

Answer:

A. (-∞, ∞)

Step-by-step explanation:

f circle g (x) is another way of expressing f(g(x)). Basically, we have to plug g(x) into f(x) wherever we see x's.

f(x) = x^2 - 1

f(x) = (2x-3)^2 - 1

Now find the domain. I think the easiest way to do this is to graph it. I've attached the graph. You can also do it algebraically by thinking about it: it's a positive parabola (+x^2) and its minimum is -1, so its range will not be all real numbers, but its domain will certainly be. (The range would be answer choice B!)

Domain = (-∞, ∞)

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(A) is the answer yes is A

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Zolol [24]

The equation 5/2 - x + x - 5/x + 2 + 3x + 8/x^2 - 4 = 0 is a quadratic equation

The value of x is 8 or 1

<h3>How to determine the value of x?</h3>

The equation is given as:

5/2 - x + x - 5/x + 2 + 3x + 8/x^2 - 4 = 0

Rewrite as:

-5/x - 2 + x - 5/x + 2 + 3x + 8/x^2 - 4 = 0

Take the  LCM

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Expand

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Evaluate the like terms

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Evaluate the like terms

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Expand

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Read more about equations at:

brainly.com/question/2972832

8 0
2 years ago
Evaluate the expression for x = 3, y=13 , and z = 5. 12x−3y4x−z
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6 0
3 years ago
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WINSTONCH [101]

Answer:

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Step-by-step explanation:

Method #1

We can draw a <em>right triangle</em> on the graph upon where the points are located and use the Pythagorean Theorem:

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* Whenever we talk about distance, we ONLY want the NON-NEGATIVE root.

_______________________________________________

Method #2

We can use the Distance Formula:

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** You see? It does not matter which method you choose, as long as you are doing the work correctly.

I am delighted to assist you anytime.

4 0
3 years ago
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