I think for number 3, it is the third option.
Answer:
= -2x
Step-by-step explanation:
3x and -5x are like terms and -10 and 10 are also like terms. like terms can be added together
= -2x cause the 10's cancel out
Answer:ca
Step-by-step explanation:
Answer:

Step-by-step explanation:
<u>Finding the missing side</u> :
- x² = 13² - 12²
- x² = 169 - 144
- x = √25
- x = 5
<u>Taking the cot value</u> :
- cot T = adjacent / opposite
- cot T = -5/12 (As cot is negative in Quadrant 2)