Multiply using the rule for finding the product of the sum and difference of two terms.(5 + r)(5 - r)
A. 25 + 10r - r2
B. 25 - r2
C. 25 - 10r - r2
D. 10 - r2
Answer: B
Mathematics
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Write the first five terms of the sequence {an}.a1 = 1, an + 1 = an + 3
A. 1, 4, 7, 10, 13, 16 B. 4, 7, 10, 13, 16 C. 1, 4, 7, 10, 13 D. 1, 3, 9, 27, 81, 243
Mathematics
Use reduction formulas to evaluate the integral.
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mathematics
Add or subtract as indicated.-55 + (-18)
A. -37 B. 37 C. 73 D. -73
Mathematics
Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. 
, x ? -9, -5
B. 
, x ? - 
C. 
, x ? - 
D. - 
, x ? -9, -5
Mathematics