Find the LCD for the list of rational expressions.
, 
A. (r + 9)2
B. r(r + 1)(r + 9)
C. r(r + 9)2
D. r(r + 9)
Answer: C
Mathematics
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Find the indicated sum. Find the sum of the first 7 terms in the geometric series 
- 
+ 
- . . .
A. - 
B. 
C. - 
D. 
Mathematics
Solve.x2 - 25 = 0
A. -5 B. -5, 5 C. 5 D. -1, 25
Mathematics
Give the numerical coefficient and the degree of the term.-10z2
A. Coefficient: 10; degree: 2 B. Coefficient: 1; degree: 10 C. Coefficient: 2; degree: 10 D. Coefficient: -10; degree: 2
Mathematics
Determine whether the sequence is arithmetic.
, 
, 
, 
, 
, . . .
A. Arithmetic B. Not arithmetic
Mathematics