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denpristay [2]
2 years ago
9

HELP PLEASE

Mathematics
2 answers:
DerKrebs [107]2 years ago
6 0
3 terms
5x, 2x^2, -8

2nd degree
highest exponent is 2


2nd degree polynomial (3 terms)
just olya [345]2 years ago
4 0

Answer:

Option C. is the answer.

Step-by-step explanation:

We have to classify the given expression (5x + 2x² - 8).

This expression has total number of terms = 3

So the expression is a trinomial.

Highest degree term in this expression is 2x², which is a second degree term.

So the expression will be defined as second degree.

In total, the expression is second degree trinomial.

Option C. second degree trinomial is the answer.

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What is true about the solution of x^2/2x-6=9/6x-18?
pogonyaev

Answer:

  • x = ±√3, and they are actual solutions
  • x = 3, but it is an extraneous solution

Step-by-step explanation:

The method often recommended for solving an equation of this sort is to multiply by the product of the denominators, then solve the resulting polynomial equation. When you do that, you get ...

... x^2(6x -18) = (2x -6)(9)

... 6x^2(x -3) -18(x -3) = 0

...6(x -3)(x^2 -3) = 0

... x = 3, x = ±√3

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Alternatively, you can subtract the right side of the equation and collect terms to get ...

... x^2/(2(x -3)) - 9/(6(x -3)) = 0

... (1/2)(x^2 -3)/(x -3) = 0

Here, the solution will be values of x that make the numerator zero:

... x = ±√3

_____

So, the actual solutions are x = ±3, and x = 3 is an extraneous solution. The value x=3 is actually excluded from the domain of the original equation, because the equation is undefined at that point.

_____

<em>Comment on the graph</em>

For the graph, we have rewritten the equation so it is of the form f(x)=0. The graphing program is able to highlight zero crossings, so this is a convenient form. When the equation is multiplied as described above, the resulting cubic has an extra zero-crossing at x=3 (blue curve). This is the extraneous solution.

7 0
3 years ago
Read 2 more answers
Will give brainliest
V125BC [204]

Answer:

B

Step-by-step explanation:

Basically, this question is asking the legs of the triangle shown in the graph.

In this right triangle, there are 2 legs and one of them is 6400 meters. We were asked to find out the length of the other led. And we know the angle is 16.5 deg.

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7 0
2 years ago
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