Answer:
+/-11
Step-by-step explanation:
It's plus or minus eleven
Answer:




Step-by-step explanation:
Given
The above triangle
First, we calculate the length LM using Pythagoras theorem.



Collect like terms


Take positive square root

Solving (a): Sin L



Simplify

Solving (b): tan N



Simplify

Solving (c): cos L
This calculated as:



Simplify

Solving (d): sin N
This is calculated using:
If 
Then: 
So:


Answer:
(-3/2, -1/2)
Step-by-step explanation:
Midpoint formula: (x1 + x2 / 2), (y1 + y2 / 2)
(7 + (-10) / 2), (-9 + 8 / 2)
(-3/2, -1/2)
Answer:
|x| = 4
Step-by-step explanation:
x = -4 or x = 4 can be written using absolute value.
|x| = 4