Use a calculator to find the approximate value. Express your answer in degrees rounded to two decimal places.tan-1 (-10.6)
A. -84.61°
B. 63.46°
C. 42.31°
D. 84.61°
Answer: A
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Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function 
. Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 707 days B. 1512 days C. 911 days D. 547 days
Write down all the subsets of the given set.{a}
A. a B. {a, b} C. ?, {a} D. {a}
Solve the problem.Find a unit vector normal to the plane containing u = -i + 3j - 5k and v = 2i - j + 6k.
What will be an ideal response?
?Determine the dimensions of a rectangular solid (with a square base) with maximum volume if its surface area is 441 square meters. ?
A. ?square base side 
; height 
B. ?square base side 
; height 
C. ?square base side 
; height 
D. ??square base side 
; height 
E. ?square base side 
; height 