If x+2 is a factor of x^3+6x^2+kx+10, then if we replace x by -2 in the polynomial x^3-6x^2+kx+10, we must get zero:
x=-2→(-2)^3-6(-2)^2+k(-2)+10=0→
-8-6(4)-2k+10=0→
-8-24-2k+10=0
-2k-22=0
Solving for k. Adding 22 both sides of the equation:
-2k-22+22=0+22
-2k=22
Dividing both sides of the equation by -2:
-2k/(-2)=22/(-2)
k=-11
Answer: k = - 11
A-$70 is the correct answer, even though im not sure.
Answer:
0.75
Step-by-step explanation:
9/12 equals 3/4 which is 0.75
Answer:
153.86
Step-by-step explanation:
Area of a circle = πr². where π =3.14, 3.14×7² =3.14×49= 153.86
