The function f(x) = 2.15(2x^2-4x-6) models the cost, in dollars, of a rug with width x feet. what is the cost of a rug that is 9 feet wide?

$258

Step-by-step explanation:

What we have is a function where we must plug an x value for the width of the rug, and we will get the cost.

What we need to do is substitute x = 9 in the equation:

entering the value of x we get:

solving the expression

the cost for a rug that is 9 feet wide is $258

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4