Answer:
3
Step-by-step explanation:
-3x-9=-6x+18
-9x=27
x=3
True because one has a whole number the other is less then a whole number hope this helped ya :)
Answer:
B. No

Step-by-step explanation:
-A right angle triangle has two complimentary acute angles and one right angle.
-
is usually one of the acute angles and is equivalent to 90º minus it's complimentary acute angle.
-Complimentary angles add up to 90º.
#For complimentary angles:

The two acute angles cannot have the same Cosine value.
Hence, she's not correct.