A medida da área delimitada entre as circunferências a: x^2 + y^2 - 6x - 10y = 0 e β: x^2 + y^2 - 6x - 10y + 9 = 0 é igual a: a) 5π u. a
b) 29π u. a.
c) 9π u. a.
d) 59π u. a.
e) 0 u. a.

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

If value of cos330° is √3/2 then find tan165°.

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.