Find the least common multiple.t, t + 5
A. t(t + 5)
B. 20
C. t + 5
D. t
Answer: A
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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) : -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.
Find the range for the set of data given.
A. 1.9 B. 4.2 C. 0.7 D. 5.3
Write the improper fraction as a mixed or whole number.
A. 6
B. 7
C. 5
D. 6
Use the prime factorization method to find the LCM of the given numbers.56 and 96
A. 224 B. 168 C. 1344 D. 672