Solve the problem.A rule for estimating the number of board feet of lumber that can be cut from a log depends on the diameter of the log. To find the diameter, d, required to get 7 board feet of lumber, we use the equation 
Solve this equation for d. Are both answers reasonable?
A. 24, -32; No, only 24 feet is a reasonable answer.
B. 28, -28; No, only 28 feet is a reasonable answer.
C. 11, -28; No, only 11 feet is a reasonable answer.
D. 32, -24; No, only 32 feet is a reasonable answer.
Answer: D
Mathematics
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 7
B. 
; 7
C. 
; 7
D. 
; 7
Mathematics
Multiply or divide as indicated. Write the answer in lowest terms.
÷ 
A. 
B. 
C. 
D. 4
Mathematics
Simplify.9log9 12
A. 9 B. 12 C. log912 D. 21
Mathematics
Answer the question.For f(x) = 2x + 5 and g(x) = 4
, what is the domain of g?f?
A. All real numbers
B. 
C. 
D. 
Mathematics