Indicate whether the statement is true or false.All non-negative integers are counting numbers.

A. true
B. false


Answer: B

Mathematics

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Find the first 4 terms of the recursively defined sequence.a1 = -9, an + 1 = an + 5

A. 0, 5, 10, 15 B. -9, -4, 1, 6 C. -9, 5, 10, 15 D. -4, 1, 6, 11

Mathematics

Perform the indicated operation(s). Simplify if possible. + 

A.
B.
C.
D. 4x + 13

Mathematics

Multiply. Be sure your answer is simplified. ? 

A.  
B.  
C.
D.

Mathematics

Classify each angle as acute, right, obtuse, or straight.

A. Obtuse B. Right C. Acute D. Straight

Mathematics