Answer:

Step-by-step explanation:
Formula =======================
<em>consider a and b two real numbers </em>
<em>where a > 0 and b > 0.</em>

……………………………………………………………
log 3 − log 15



Answer:
1
Step-by-step explanation:
I will assume you want to find the slope [ y2-y1/x2-x1 ]
-7-(-3)/4-8
-4/-4
1
Best of Luck!
Answer:
x = +/- sqrt10 i + 1
Explanation:
Key: +/- is plus-minus
I used complete the square
x^2 - 2x + 11 = 0
x^2 - 2x = -11 -2/2 = (-1)^2 = 1
( x - 1 ) ^2 = -10
x - 1 = +/- sqrt10 i
x = +/- sqrt10 i + 1
Picture for clearer answers v