Answer:
-8
Step-by-step explanation:
-5+2-3-2
Combine
-3 -3-2
-6-2
-8
Answer:
-35
Step-by-step explanation:
This value of "a" is exactly the y-coordinate of the vertex of the parabola
y = x%5E2+%2B+4x++-+31.
To find it, complete the square:
x%5E2+%2B+4x++-+31 = %28x%2B2%29%5E2+-+4+-+31 = %28x%2B2%29%5E2+-+35.
So, this value of "a" is a = -35.
Answer:
k=8
Step-by-step explanation:
2k-12+3k=3k+4
5k-12=3k+4
2x-12=4
2k=16
k=8
Answer:
x= 4
Step-by-step explanation:
40x-20=100+10x
Subtract 10x and add 20 both sides:
30x= 120
x=4
