Find the equation for the given conic in the x'y'-coordinates when the coordinate axes are rotated through an angle ?.5x2 - 6xy + 5y2 - 8 = 0; ? = 45°
A. x'2 + 4y'2 = 1
B. 
+ y'2 = 1
C. 
+ 2y'2 = 1
D. 
+ 
= 1
Answer: B
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Solve the problem.A barge takes 4 hours to move (at a constant rate) downstream for 32 miles, helped by a current of 2 miles per hour. If the barge's engines are set at the same pace, find the time of its return trip against the current.
A. 64 hr B. 8 hr C. 6 hr D. 4 hr
When a company acquires a capability from an external supplier and uses that capability to create value for customers, the firm has engaged in
A. benchmarking B. outsourcing C. diversification D. international expansion
Determine if the fraction is in lowest terms. If not, find a common factor of the numerator and denominator (other than 1).
A. no, 247 is a common factor B. no, 19 is a common factor C. no, 13 is a common factor D. yes
Simplify the complex fraction.
A. 
B. 
C. 
D. 