What is c in the equation 2x2-3x-4=5

um well if C would be the X then

Step-by-step explanation: 2 times 2 is four now you have to figure out which number minus 4 is 5 which would be nine then you go back to the 3x part and the only way to get nine from a 4-3 is it would have to be a negetive so then you see that 2 plus seven is 9 or 2- (-7) is 9 so you find three times -7 =-2.33333333

The givens can be expressed as the abscissa and ordinate of two points. The first point is (1.5, 91). The second point would then have the coordinates of (2.25, 58)
We are given with two points so we can derive the equation using the two-point form.
That is,           
 y – y1 = ((y2 – y1)/(x2 – x1))(x – x1)

We may choose which among our derived coordinates will be 1 and 2. Substituting to the equation,           
y – 91 = ((58 – 91)/(2.25 – 1.5))(x – 1.5)           
y – 91 = -44(x – 1.5)
Simplifying further,         
y – 91 = -44x + 66     
   
y = -44x + 157

Thus, the equation above gives the number of pretzels that can be sold given the price.