Answer:
-1/5
Step-by-step explanation:
When a line is perpendicular to another line, it's gradient will be a reciprocal.
To calculate the reciprocal of a number you have to flip the fraction the other way around.
So, in the case our current gradient is 5/1 (5/1 is the same as just 5) and we need to flip in over to get 1/5, which is our new gradient.
The final step is to make the number negative because the line is going down. This gives us the final answer of -1/5.
supplement is two angle sun is 180
so 180-51=129
Answer:
C
Step-by-step explanation:
Answer:
166.67 miles
Step-by-step explanation: 381.1 = x + 214.43
381.1-214.43 = 166.67 miles