42.87*0.15= $6.43 rounded
Answer:
Step-by-step explanation:
The slope of a line perpendicular to another line is the opposite reciprocal of the slope of the other line, meaning if the slope of the other line is , then the slope of the line perpendicular is .
Knowing this, we can start to construct the equation for the line:
To solve for , we plug in the coordinates of the point that we know the line runs through, :
Therefore, the slope of the line that is perpendicular ot the line provided in the equation is the following:
Multiply it out to get 5/7*1/9=5/63. This is an exact value of the product.
Using PEMDAS this is the answer I got 1,042.5 :)