Is the following correspondence a function?DomainRange 
A. function
B. not a function
Answer: B
Mathematics
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Solve the problem.In an aerobic exercise machine, weights are lifted and a person's hands are constrained to move along arcs of the ellipse 
If the person's hands move upward at 0.2 m/s and start at 
at what velocity is each moving after 2.5 s? Find the magnitude and direction of the velocity.
A. 0.27 m/s, 108° B. 0.21 m/s, 108° C. 0.21m/s, 72° D. 0.27 m/s, 72°
Mathematics
Write the phrase in exponential notation.Three to the fourth
A. 12 B. 43 C. 34 D. 3 ? 4
Mathematics
Determine if the ordered pair is a solution to the given inequality.x2 - xy > 49; 
A. Yes B. No
Mathematics
Write the decimal as a fraction or mixed number in lowest terms.63.626
A. 63
B. 
C. 12
D. 
Mathematics