Determine whether the relation represents a function. If it is a function, state the domain and range.
A. function
domain: {Alice, Brad, Carl}
range: {cat, dog}
B. not a function
C. function
domain: {cat, dog}
range: {Alice, Brad, Carl}
Answer: A
Mathematics
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Perform the subtraction and simplify.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.
A. 8
B. 17
C. 8
D. 16
Mathematics
Factor the trinomial, or state that the trinomial is prime.5x2 + 6xy + y2
A. (5x - y)(x - y) B. (5x + y)(x + y) C. (5x + y)(x + 5y) D. prime
Mathematics
Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
Mathematics