Abox is to be constructed with a rectangular base and a height of 5 cm. if the rectangular base must have a perimeter of 28 cm, which quadratic equation best models the volume of the box?

v = lwh
p = 2(l + w)
y = 5(28 – x)(x)
y = 5(28 – 2x)(x)
y = 5(14 – x)(x)
y = 5(14 – 2x)(x)

y=5(14-x)(x)

Step-by-step explanation: The perimeter is 2a + 2b (where a and b are the sides)

We know that 28=2a +2b

14=a + b

a= 14-b

So the volume is height*side*side= 5* b * (14-b)

The solution equation is the same just uses x instead of a or b

here is your mark brainliest

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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