Final answer:
To solve for x in the equation 8.45, round it to the nearest tenth of a degree, resulting in 8.5.
Step-by-step explanation:
To solve for x in the equation 8.45, we can round it to the nearest tenth of a degree and obtain the answer 8.5. Rounding to the nearest tenth means looking at the digit in the hundredth place, which is 4 in this case. Since it is less than 5, we round down the digit in the tenth place, resulting in 8.5.