A contractor bought 7.6 ft^2 of sheet metal. She has used 3.5 ft^2 so far and has ​$82 worth of sheet metal remaining. The equation 7.6 x-3.5x=82 represents how much sheet metal is remaining and the cost of the remaining amount. How much does sheet metal cost per square​ foot?

up

step-by-step explanation:

the orientation of the parabolas can easily be found by analysing the power of x and y and their signs. if x is squared , parabola opens up and also if its coefficient is negative it opens down. if y is squared , the parabola opens right and also if its coefficient is negative it opens left. however in order to do the above analysis our equation must be in standard form .

our parabola is

which is not standard form of any parabola . hence we square on both hand side and convert it into standard form.

hence we see that x is squared and its coefficient is non negative . there for it opens up.

47 - 90 = 43

43 - 180 = x

x = 137

never fear papaguy is here

answer

ask the math teacher she or he would know lol.

step-by-step explanation: