Simplify the expression. Assume all variables represent positive real numbers.3 
+ 3 
A. 18x
B. 3 
C. 6 
D. 18 
Answer: D
Mathematics
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Solve.log2 (x2 - 140) = 2
A. -12, 12 B. 13 C. 12 D. -13, 13
Mathematics
Find the simplified form for f(x) and list all restrictions on the domain.f(x) = 5 + 
- 
A. f(x) = 
, x ? -6, 6
B. f(x) = 
, x ? 6
C. f(x) = 
, x ? -6
D. f(x) = 
, x ? -6, 6
Mathematics
Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = cos ?Find 3 f(?).
A. - 
B. 
C. 
D. - 
Mathematics
Use the given information to write the equation of the circle in standard form.The set of all points that are a distance of 11 units from (-2, -6).
A. (x - 2)2 + (y - 6)2 = 121 B. (x + 2)2 + (y + 6)2 = 121 C. (x - 6)2 + (y - 2)2 = 11 D. (x + 6)2 + (y + 2)2 = 11
Mathematics