<h2>5.4 × 10⁵ - 1.4 × 10⁴ = 540,000 - 14,000 = 526.000</h2><h2 /><h2 />
<h3>
Answer: Choice C</h3>
Work Shown:

So that's why the answer is choice C
The requirement that x is nonzero isn't technically necessary. The original expression simplifies to choice C even when x = 0 is the case. Also, we don't have issues such as division by zero errors that could arise. It's a bit curious why your teacher put in that condition.
<span>Area = (1/2)(533 ft)(525 ft) sin(53) = 111739 square feet</span>
I do not understand this question.
What is 0.7 is 1/10 of? 0.7 is 7/10. So it's 3. Hoped i helped!