Answer:
x = - 0.89
Step-by-step explanation:
x - 8.2 = - 9.09
x = - 9.09 + 8.2
x = - 0.89
Ok so the width is 8 cm ok so hm
Answer:
8
Step-by-step explanation:
The conjugate of - 2 + 2i is - 2 - 2i, hence
(- 2 + 2i)(- 2 - 2i) ← expand factors using FOIL
= 4 + 4i - 4i - 4i² [ note i² = - 1 ]
= 4 + 4
= 8
Using complex numbers concepts, it is found that the statement is false.
When a complex number is a root of a polynomial function, it's conjugate also has to be.
- A complex number has the format
, and it's conjugate is
.
In this problem:
- Real root -3.
- Complex-conjugate roots 1 + i and 1 - i.
- Complex root -3 + 7i.
The conjugate of -3 + 7i also has to be a root, which would make the polynomial of the 5th degree, as it would have 5 roots, thus, the statement is false.
A similar problem is given at brainly.com/question/24450834
The vertex form is y= (x - 5)^2 - 31