I had to do this and it’s fake, my whole class got it wrong even though we all put the right answer so ya
Answer:
132
Step-by-step explanation:
:) brainliest please
Notice that half of the coefficient of x is (1/2)(-4), or -2.
Then x^2 - 4x becomes
x^2 - 4x + 4 - 4 = 0, or (x -2)^2 = 4. Then x = -2 plus or minus 2, and the two roots are 0 and -4.
Thus, add 4 to both sides to obtain x^2 - 4x + 4 = 4.
Answer:
x=-3, and y=2
Step-by-step explanation:
Since both equations are equal to y, set them equal to each other and solve for x, that way you can solve for y:
x+5=-2x-4
3x+5=-4
3x=-9
x=-3
Plugging in x=-3 into one of the original equations:
y = x + 5
y = -3 + 5
y = 2
Therefore, x=-3 and y=2. You can also write as the ordered pair (-3,2) since that's where the two equations would intercept on a graph.
Answer:
560
Step-by-step explanation:
1=160
2=320
3=480
4=640
5=800
6=960
7=1120
8=1280
9=1440
JUST ADD 160 EACH TIME
hope this is what your looking for :)
