Answer:
For 
it will be plus or minus 
For 
it will be plus or minus 
Step-by-step explanation:
Well for it will be 5i
Because i = -1
Answer: -91
Step-by-step explanation:
13x, x=-7
plug in the -7 to x
13(-7)
multiply
<h3>
-91</h3>
Answer:
Step-by-step explanation:
The median is the average of the lengths of the two bases:
5x -20 = (12 + (4x -10))/2
5x -20 = 2x +1
3x = 21 . . . . . add 20-2x
x = 7
Then the lengths are ...
median = 5x -20 = 5·7 -20 = 15
base = 4x -10 = 4·7 -10 = 18
Okay, this is C. This is because since he has already driven 3.5miles so far, we already have that and we add it cause we have already driven that. Then, it says 100 miles for every TWO hours. For x, we need to find how many miles we drive in ONE hour. So: 100/2 miles = 2/2 hours: 50 miles = 1 hr.
That sounds correct to me.
