The number with the largest exponent is the largest value overall. In this case, that would be 2.1 x 10^8 which is the largest value since 8 is the largest exponent.
Note: The number 4.5 x 10^6 is the number 4.5 million, while the number 2.1 x 10^8 is the number 210 million. The positive exponent means "move the decimal point that number of times to the right". So 4.5 x 10^6 means "move the decimal point 6 spots to the right" so you can convert to standard form. The larger the exponent, the more places the decimal point moves to the right.
The answer for this problem would be 38, because 37.52 rounds up
Answer:
arc WVY = 265.4°
Step-by-step explanation:
arc XY = arc WX because ZY = WZ
360° - 47.3° - 47.3° = 265.4°