You didn't give the fourth zero, but the answer is still false. If you have a root or an imaginary number as a zero, then its conjugate is also a zero. So if 8i is a zero, then -8i must also be a zero, and if 4i is a zero, then -4i must be a zero, with those zeros and -4, the number of zeroes exceeds the number of zeroes that a fourth degree polynomial can have.
Answer:
A = (1/2)(base)(height)
Step-by-step explanation:
Yes, that's correct:
A = (1/2)(base)(height)
Was there more to this question?
Answer:
X=27
Step-by-step explanation:
Times 3 by 9 to get the answer
Given:
The equation is:

To find:
The solution for the given equation.
Solution:
We have,

It can be written as:



Taking square root on both sides, we get
[Radius cannot be negative]


Therefore, the value of r is about 6.36 cm.