Select the equation that represents a problem that opens down from a vertex of (32,26) and has a focus located 20 units away from the vertex

Step-by-step explanation:

If the parabola opens downward, and we have a p value (which is the distance from the vertex to the focus), the form of the equation we need is:

If the vertex is (32, 26), then h = 32 and k = 26.  If the focus is located 20 units from the vertex, then p = 20.  Filling in:

and

and

so the equation is

You didn't give choices so I'm not sure what form you need this in.  This is vertex (or work) form.

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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answers

rauschg

rauschg · hand

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step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11