(-4x^2 -6x -1) - (-x^2 -5x +3) = -3x^2 - x - 4
Answer
0.4283
Step-by-step explanation:
Multiply
0.4283
by
1
.
The diameter is approximately 32.72 cm.
Vertex form is basically commplete the square
y=a(x-h)^2+k
y=x^2+14x+4
take 1/2 of 14 and square it, (7^2=49)
add that and its negative to right side
y=x^2+14x+49-49+4
factor perfect squaer
y=(x+7)^2-49+4
y=(x+7)^2-45
answer is A
