Evaluate the algebraic expression for the given values of the variables.
for x1 = -5, x2 = 6, y1 = 2, and y2 = 3
A. - 
B. 11
C. 5
D. 
Answer: D
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Sketch the indicated set. Describe the boundary of the set. Finally, state whether the set is open, closed or neither.{(x, y) : x2 + y2 < 4}
A. 
The boundary is the circle of center (0, 0)
and radius 2. The set is closed.
B. 
The boundary is the circle of center (0, 0)
and radius 2. The set is open.
C. 
The boundary is the circle of center (0, 0)
and radius 4. The set is closed.
D. 
The boundary is the circle of center (0, 0)
and radius 4. The set is open.
Find the indicated cardinal number.Find n(A) given that n(A × B) = 22 and n(B) = 2.
A. 11 B. 20 C. 2 D. 24
Solve the problem.On a map of the Thunderbird Country Club golf course, 1.5 inches represent 30 yards. How long is the 6th hole if the map shows 14 inches?
A. 3.2 yd B. 280 yd C. 420 yd D. 630 yd
Determine convergence or divergence of the alternating series.
A. Diverges B. Converges