if c is -1 the equation should be
4x² + 4x -1 = 0
not plus 1
I assume you want the coordinates of the zeros.
if c is indeed -1, they are at (-1.207 , 0) and (0.207 , 0)
if c is +1, as in the equation the only zero point is at (-0.5 , 0)
see screenshot for illustration
Answer:
The sum of 0.380 and 0.245 would be 0.625
Its A 0.125 because 0.125×8=1.000 or 1 full
Answer:
Original number = 38
Step-by-step explanation:
10*x + y
x = y - 5
10y + x = 2 (10x + y) + 7
10y + y - 5 = 2(10(y - 5) + y) + 7
11y - 5 = 2(10y - 50 + y ) + 7
11y - 5 = 2(11y - 50) + 7
11y - 5 = 22y - 100 + 7
11y - 5 = 22y - 93
11y + 88 = 22y
88 = 11y
y = 8
x = y - 5
x = 8 - 5
x = 3
So the original number is 38. Does that work?
3 is 5 less than 8.
83 = 2*38 + 7
83 = 76 + 7
83 = 83. Yes it works.
-8 = -7x-1
bring -1 to the other side as we are isolating for x so it will be
-7 = -7x then divide -7 from each side
-7/-7 = (-7/-7)x
1 = x
Answer is f(1)= -8
