Which equation has real, rational, and unequal roots?
1) r^2+ 10x + 25 = 0
2) r^2 - 5x + 4 = 0
3) r^2 - 3x + 1 = 0
4) r^2 - 2x + 5 = 0

Answer is 2)

Step-by-step explanation:

Since adding or subtracting

0

wouldn't change the answer at all, we actually only have a single solution instead of 2 solutions.

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers