N6 or n divide 6 it’s easy but really hard to learn
Answer: D = time *speed
Step-by-step explanation:
A. 1/2 *4
B. 1/3*5 + 1/6*4
C. 1/4*6 + 1/4*5.5
D. 1/10*1 + 9/10* 6.5
Answer:
x=-1,-3,2i and -2i
Step-by-step explanation:
By plugging in x=-1, f(x)=0 and x=-3,f(x)=0
That means x+1 and x+3 are roots of the fourth degree polynomial.
(x+1)(x+3)=x²+4x+3
Divide the polynomial by x²+4x+3 and that gives x²+4.
We now find the zeros of the factors
(x²+4x+3)(x²+4)=0
x=-1,-3,2i and -2i
