For the equation:
-1=5 x^2 - 2 x
5 x^2 - 2 x + 1 = 0, then we substitute: a=5, b=-2, c =1
to discriminant formula: D= b^2 - 4 a c = (-2)^2 - 4 * 5 * 1 = 4 - 20 = - 16
Answer:
The discriminant is equal to -16 which means the equation has no real number solutions.
Answer:
The last one 4x4
Step-by-step explanation:
5 pounds = 80 ounces
80 days = 80/7 weeks = 11 weeks and 3 days, about 11 weeks
Simplify terms, then move the terms over so 'y' is by itself.
-7y-0.6=3.6-y
-0.6-3.6=-y+7y
-4.2=6y
y=-4.2/6
y= -0.7
The solution is the point where the lines meet.
The x coordinate is between 0 and 1
The y coordinate is between 2 and 3
The solution is approximately (x,y) = (-0.4, 2.9)
