80 is the estimate that I say it's pretty close
Angle BEC is the unmarked angle in the middle of the figure. Its value is the difference between straight angle AED (180°) and the two marked angles, 57° and 33°. That difference is ...
... 180° - 57° -33° = 90°
∠BEC is a right angle.
437,000
400,307
In the second number, the 7 is moved 3 places to the right, and the 3 is moved 2 places to the right.
(The digit 4 is used here simply to make the numbers be the same overall length. It can be changed to any other digit (except 3 or 7) or removed. Digits that are not 3 or 7 can replace any of the zeros.)
Answer:
Step-by-step explanation:
