Answer:
x=-1 y=4 (-1,4)
Step-by-step explanation:
Answer:The measure of angle RST is 120\°
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
m<RST=(6x+12)\° -----> equation A
m<RST=78\°+(3x-12)\° -----> equation B
equate equation A and equation B
(6x+12)\°=78\°+(3x-12)\°
Answer:
the answer is A
Step-by-step explanation:
Answer:
constant
Step-by-step explanation: