Answer:
B. y = (x + 3)^2 - 17
Step-by-step explanation:
When Andy completes the square, he adds and subtracts the square of half the x-coefficient. That is, he adds and subtracts (6/2)² = 9:
... y = x² +6x +9 -8 -9
... y = (x² +6x +9) -17
... y = (x +3)² -17 . . . . . . . . matches selection B
Answer:
7n+(3+2n)=30
Step-by-step explanation:
The number (n) is 3.
(y=-7)*-1
y=-21+1x
-y=7
y=-21+1x
0=-14+1x......>14=x
substituted to 2nd equation y=1(14)-21=-7
check -7=-7+0 .....>-7=-7
Answer:
Step-by-step explanation:
You can isolate the "V" variable by dividing by IT on both sides:
On the left, the IT from the top and bottom cancel, leaving you with just V:
3/7.
How to find out:
3 x 5 = 15
7 x 5 = 35
2 x 7 = 14
5 x 7 = 35