Solve the problem.If all of 48 available apple trees are to be planted in a rectangular array, what are the possible numbers of rows in the array, all rows having the same number of trees?
A. 8, 12, 16, 24, and 48
B. 1, 2, 3, 4, and 6
C. 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 24, and 48
D. 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48
Answer: D
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Solve the problem.Locate and identify the absolute extreme values of sin (ln x) on 
A. Absolute maximum at (e?/2, 1); absolute minimum at (4, sin (ln 4))
B. Absolute maximum at (e?/2, 1); absolute minimum at 
C. Absolute maximum at(5, sin (ln 4)); absolute minimum at (e?/2, -1)
D. Absolute maximum at (5, sin (ln 4)); absolute minimum at (4, sin (ln 4))
Calculate.124.23 ÷ 
+ 39.40 × 
A. 71.864 B. 213.02 C. 216.9 D. 61.6125
Find the exact value of the square root without a calculator.
A. 
B. 
C. 
D. 
Graph the ellipse and locate the foci.
+ 
= 1
A. foci at (5, 0) and (-5, 0)
B. foci at (
, 0) and (-
, 0)
C. foci at (4, 0) and (-4, 0)
D. foci at (0, 
) and (0, -
)