(7x-6y) and (x+y)
what is the sum?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.

Which of the following vectors are orthogonal to (2,1)? check all that apply