Write the first four terms of the sequence.an = -5
A. a1 = -5, a2 = 10, a3 = -15, a4 = 20
B. a1 = -5, a2 = -10, a3 = -15, a4 = -20
C. a1 = 5, a2 = -5, a3 = 5, a4 = -5
D. a1 = -5, a2 = -5, a3 = -5, a4 = -5
Answer: D
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A. -2. B. 1. C. 0. D. -4. E. none of these
Let x be a number. Translate the English phrase or sentence into a mathematical expression. Subtract 72 from a number
A. 72 B. 72x C. 72 - x D. x - 72
The pair of triangles is congruent. List the corresponding angles and the corresponding sides. 
A. ?1 and ?6; ?2 and ?4; ?3 and ?5; 
and 
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and 
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and 
B. ?1 and ?6; ?2 and ?5; ?3 and ?4; 
and 
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and 
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and 
C. ?1 and ?2; ?3 and ?4; ?5 and ?6; 
and 
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and 
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and 
D. ?1 and ?6; ?2 and ?4; ?3 and ?5; 
and 
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and 
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and 
Factor completely, if possible.8y8 - 8z8
A. 8(y2 + z2)(y + z)(y - z) B. 8(y4 + z4)(y2 + z2)(y + z)(y - z) C. 8(y4 + z4)(y2 + z2)(y - z) D. 8(y4 + z4)(y2 + z2)(y2 - z2)(y + z)(y - z)