19: He multiplied instead of dividing which will make a totally incorrect answer
Answer:
Option A: (-10,0)
Step-by-step explanation:
The given equation of the parabola is in the form of 
where the focus is located at 
. Therefore, the focus of the parabola is 
.
Let x represent the number of pounds of $10.75/lb coffee used in the mix.
.. 10.75x +3.25(100 -x) = 5.65*100 . . . . . . total cost of coffee blend
.. x(10.75 -3.25) = 100*(5.65 -3.25) . . . . . .separate x-terms from non-x terms
.. x = 240/7.5 = 32
32 pounds of $10.75/lb coffee should be used
68 pounds of $3.25/lb coffee should be used
Always- their slopes are always opposite reciprocals of each other
Answer:
e t
Step-by-step explanation:
