Is this a right triangle? How do you know?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0

I’m really confused and need your assist me with this question i’ve never been taught