Check whether the set and the operation form a group.
?
? for ×
?
A. no
B. yes
Answer: A
Mathematics
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Answer each question appropriately.Suppose the area of the region between the graph of a positive continuous function f and the x-axis from x = a to x = b is 11 square units. Find the area between the curves y = f(x) and y = 4f(x).
A. -33 square units B. 44 square units C. 33 square units D. 55 square units
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = tan-1 10x
A. p2(x) = 1 + 10x2 B. p2(x) 1 + 5x2 C. p2(x) = 10x D. p2(x) = 1 - 10x2
Mathematics
Fill in the blank with the correct inequality symbol.If x < -8, then x + 8 
0.
A. ? B. < C. ? D. >
Mathematics
Write the number in scientific notation.86.223
A. 8.6223 × 101 B. 8.6223 × 10-2 C. 8.6223 × 102 D. 8.6223 × 10-1
Mathematics