Answer:
I think the answer is 14, but rounded to the nearest tenth will be 10.......
Step-by-step explanation:
with T = 50⁰C, we have:
50 = 200 - 5x - x²
<=> x² + 5x = 150
<=> x² + 5x - 150 = 0
=> x = 10
I think its b
5^9