Answer:
Step-by-step explanation:
For #2, remember that 
, so 
Also, (a+b)(a-b), where a and b are any numbers, (a+b)(a-b)=
. Now, to simplify, or radicalize, a number with surds in the denominator, you have to multiply the denominator by its conjugate. If there is a complex number 
, where a and b are any numbers, the conjugate is always 
. Lets apply these rules. The conjugate of 4+6i is 4-6i, so do this:
Our answer is (28-3i)/(26)!
Answer:
50% or 1/2 Could be 100% but i think it is 50%
Step-by-step explanation:
Because Changing the coin will make no difference.
Answer:
-2/3
Step-by-step explanation:
The line goes down 2 for every 3 to the right.
Answer: Option A. -4x^8
Step-by-step explanation:
The polynomial function given in the graph has 4 real roots. And because the graph falls to the left and right, it will have even order and negative leading coefficient.
So we have only one option that matches the required conditions, and i.e. option A.
15% = 0.15
0.15 • 50 = 7.5
50 + 7.5 = 57.5
