Answer:
9/2
Step-by-step explanation:
perpendicular lines have slopes that are opposite and reciprocal
the reciprocal of -2/9 is 9/2
Answer: it’s a
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
any numbers multiply by zero always equals to zero
Answer:
B
Step-by-step explanation:
they are two 90° .so B is correct I think