Answer:
C. 2
Step-by-step explanation:
If the discriminant is >0 we have 2 real solutions
If the discriminant is =0 we have 1 real solutions
If the discriminant is <0 we have 2 complex solutions (no real solutions)
since 10>0 we have 2 real solutions
Answer:
D. x = -5/2, x = -1/2
Step-by-step explanation:
2x² + 7x + 5 = 0
(2x + 5)(x + 1) = 0
2x + 5 = 0 or x + 1 = 0
2x = -5 or x = -1
x = -5/2 or x = -1/2
Finding the x-intercept first:
5 (x - 2) = y - 3
5x - 10 = 0 - 3
5x - 10 = -3
5x = 7
x = 7/5 or 1.4
Solve for y
y - 3 = 5 (0 - 2)
y - 3 = 0 - 10
y - 3 = -10
y = - 7
-3/22?? I believe that's the answer
To find the integer that changes the account over the last two days:
As she withdrew $22,it would be -$22,and deposit of $10 would be +$10,which makes:
-22+10
=-12
Therefore the total changes of her account is -12.
Hope it helps!
