Write the sum without sigma notation and evaluate it.
A. 
+ 
+ 
+ 
= 
B. 
+ 
= 
C. 
? 
? 
? 
= 
D. 
+ 
+ 
+ 
= 15
Answer: D
Mathematics
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A. $337 B. $317 C. $245 D. $327
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Solve the rational equation.
= 
A. -12
B. 
C. - 
D. 6
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Write the statement in symbolic form.The set of irrational numbers is a subset of the real numbers.
A. I ? R B. Q ? R C. I ? R D. I ? W
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Describe the solution set as an inequality and in interval notation. |5x + 4| - 7 < -9
A. x < - 
or x > - 
; 
? 
B. - 
< x < - 
; 
C. empty set
D. the set of real numbers; (-?, ?)
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