×·c-q.50=.50F you have to follow the steps
<span>x=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a</span></span></span><span>x=<span><span><span>−<span>(3)</span></span>±<span>√<span><span><span>(3)</span>2</span>−<span><span>4<span>(2)</span></span><span>(5)</span></span></span></span></span><span>2<span>(2)</span></span></span></span><span>x=<span><span><span><span>−3</span>±<span>√<span>−31</span></span></span>4</span>
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Answer: The correct option is D: Is alloyed with carbon and chromium to make stainless steel.
Explanation: Because of its physical characteristics, iron is a material that tends to oxidize easily. With the chromium alloy stainless steel is created, which for its quality can be used in the manufacture of structural steels.
Answer:
The diameter is 6
Step-by-step explanation: