523 – 2z4 – 922 + 2
What is the degree of the polynomial?

  perhaps 4

Step-by-step explanation:

What you have written is a linear expression, which has degree 1.

  -8z -397

We recognize that people often write z4 when they mean z^4, so our first level of "interpretation" suggests that you might intend ...

  523 -2z^4 -922 +2 = -z^4 -397

The only exponent of the only variable here is 4, so the degree is 4.

The next level of "interpretation" suggests that you might have written 2 where you mean z, and the expression is supposed to be ...

  5z^3 -2z^4 -9z^2 +2

Since we don't expect to see more than one constant term, this "interpretation" seems to make the most sense to us. Here, there is still only one variable, and its exponents are 3, 4, and 2. The largest of these is 4, so the degree of the polynomial is 4.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

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step-by-step explanation: