Graph the function.y = ln (x + 4)
A. 
B. 
C. 
D. 
Answer: A
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Find a1, d, an, n, or Sn for the arithmetic sequence, as instructed.a1 = 47, d = 6, an = 221; Find n.
A. 38 B. 30 C. 29 D. 28
Add or subtract. Simplify by combining like radical terms, if possible. Assume all variables and radicands represent nonnegative numbers.6 
- 8
+ 9 
+ 3
A. 15 
- 5
B. 15 
- 5
C. 15 
- 5
D. 10
Evaluate the series, if it converges.
+ 
+ 
+ 
+ ...
A. 8
B. 2
C. Does not converge
D. 
Solve the problem.The sum of three numbers is 12. If the second number is subtracted from the sum of the first and third numbers, the result is 2. If the third number is subtracted from the sum of the first and second numbers, the result is 4. Find the three numbers.[Hint: let x represent the first number, y the second number, and z the third number. Use the given conditions to write and solve a system of equations.]
A. x = 3, y = 5, z = 4 B. x = 1, y = 7, z = 4 C. x = 4, y = 6, z = 2 D. x = 4, y = 5, z = 3