Is the following correspondence a function?
A. Yes
B. No
Answer: A
Mathematics
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Solve. (x - 7)2 + x2 = (x + 1)2
A. -4, -12 B. 7, -1 C. 4, 12 D. 7, 12
Mathematics
Provide an appropriate response.The function f(x, y) = 
x3 + 
y2 + xy - 6x + 3 has a relative minimum at
A. (-2, 2). B. (2, -2). C. (-3, 3). D. (2, 2). E. (3, -3).
Mathematics
Find the db gain of an amplifier whose input voltage is 1.2 volts and whose output voltage is 19 volts. Round to two decimal places, if necessary. ?
A. 1.2 db B. 55.24 db C. 23.99 db D. -55.24 db E. 3 db
Mathematics
Use the square root property to solve the quadratic equation.2y2 + 8y + 5 = 0
A. -2 ± 
B. 2 ± 
C. 2 ± 
D. -2 ± 
Mathematics