I do suppose that you refer to adding these quantities:
6/1 + 21 = 6 + 21 = 27
<span>and
6/10 + 21
</span>= 3/5 + 21
= 3/5 + 105/5
= 108/5
Short Answer x = 1
There is nothing with the way the equation was solved. All the rules of logs were obeyed.
The problem is in the answer. Try putting log - 8 into your calculator. Do it like this if you are uncertain.
log
8
+/-
=
My calculator gives Error 2.
Rule values less than and including 0 do not have a logarithm..
Answer:
answer is 746.
have a nice day and do good in math
Answer:
Perpendicular
Step-by-step explanation:
To tell if the lines are perpendicular/parallel, you must look at the slope, but in this case, you must first get y by itself, like so:
3x + 7y = 15
-3x - 3x
___________
7y = -3x + 15
<em><u>Divide both sides by 7:</u></em>
y =
<em><u>Now the other equation:</u></em>
7x - 3y = 6
-7x -7x
_________
-3y = -7x + 6
<em><u>Divide both sides by -3:</u></em>
y =
You can see that the lines are perpendicular because the slopes ( and ) are opposite reciprocals.