Determine whether the given vectors are orthogonal.3i - 4j and -8i - 6j
A. Yes
B. No
Answer: A
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The box plots represent a comparison of the annual salaries of a group of opera and a group of country western singers respectively.
The range of salaries for the group of country western singers is approximately
A. $65,000. B. $90,000. C. $15,000. D. $40,000. E. none of these
Determine the real zeros of the polynomial and their multiplicities. Then decide whether the graph touches or crosses the x-axis at each zero.f(x) = 3(x2 + 5)(x - 4)2
A. 4, multiplicity 2, crosses x-axis B. 4, multiplicity 2, touches x-axis C. -5, multiplicity 1, touches x-axis; 4, multiplicity 2, crosses x-axis D. -5, multiplicity 1, crosses x-axis; 4, multiplicity 2, touches x-axis
Indicate whether the function is one-to-one.{(13, -15), (11, -5), (5, 3)}
A. No B. Yes
Solve.- 
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B. 
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D. 