Aplayground has three different playing areas: a square area for a swing set, a rectangular area for a slide, and an area of 30 square feet for a basketball hoop. the following expression represents the total area of a rectangular playground, and x represents side length of the area with the swing set. x^2 + 11x + 30 what does x^2 represent in this expression

In this expression x^2 would represent the area of the square. The area of the square is found by multiplying the length by the width. A square would have the same length for each therefore it can be represented as x^2.

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.