L E T M E S O L V E
x+3y=21
12+3y=21
3y=9
/3 /3
y=3
T H E R E Y O U G O
Answer:
See attached photo.
Step-by-step explanation:
x = -2y^2 + 4y + 2
Answer:
each of the eight angles measures 45 degrees
Step-by-step explanation:
The sum of all exterior angles of any polygon always measures 360 degrees.
If it's 'regular' then all angles have the same measures.
If it's an octagon, then it has 8 sides.
360 divided by 8 = 45
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ANSWER: 7 1/7 = 714.29%
3 ÷ 400 = 0.0075
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0.0075 × 100 = 0.75
ANSWER: 3/400 = 0.75%
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0.0054 × 100 = 0.54
ANSWER: 0.54%