Sketch the indicated set. Describe the boundary of the set. Finally, state whether the set is open, closed or neither.{(x, y) : -2 ? x ? 0, 0 ? y ? 2 + x}
A. 
The boundary is the triangle with vertices
(0, 0), (-2, 0), (0, -2). The set is open.
B. 
The boundary is the triangle with vertices
(0, 0), (2, 0), (0, 2). The set is open.
C. 
The boundary is the triangle with vertices
(0, 0), (2, 0), (0, 2). The set is closed.
D. 
The boundary is the triangle with vertices
(0, 0), (-2, 0), (0, 2). The set is closed.
Answer: D
You might also like to view...
Identify a, b, and c from the quadratic equation.
A) a=7, b=-2, c=0
B) a=2, b=-7, c=0
C) a=0, b=7, c=2
D) a=0, b=0, c=7
E) a=2, b=0, c=7
Add the integers.4 + (-4) + (-25)
A. 33 B. -17 C. 25 D. -25
Solve the problem.The revenue from the sale of a product is given by R = 1408x - 17x2 - x3. If the sale of 11 units gives a total revenue of $12,100, find another number of units that will give $12,100 in revenue.
A. 27 units B. 12 units C. 50 units D. 22 units
A panel of five is selected from 15 people and seated behind a table. In how many different orders can they be seated?
What will be an ideal response?