Answer:
i think its rational.
Step-by-step explanation:
Half the x-coefficient is -3, so the equation needs to be rearranged into a form that looks like
x² -6x +(-3)² + [something]
You can get there by adding and subtracting 9 from the original equation.
y = x² -6x +9 +7 -9 . . . . . 9 added and subtracted
y = (x² -6x +9) -2
The quantity in parentheses is a perfect square, so we can write the equation in the desired form as ...
y = (x -3)² -2
Answer:
15
Step-by-step explanation:
1.68 divided 25.20 = 15
Answer:
First Picture: 2032*93 = 188976, 425/25 = 17
Second Picture: the machine is dividing the number by 6
Third picture: 85
Step-by-step explanation:
Second Picture: 36/6 = 6 and 54/9 = 6 therefore the machine is dividing by six
Third Picture: a multiple of 7 is 84 (7*12 = 84). 85 is one more than a multiple of 7. Therefore 85 is the answer. A formula can be 7x + 1 = (then try out different numbers in the grid)
7x+1 = 85
7x = 84
x = 84/7
x = 12
Therefore 85 is one more than a multiple of 7.
