Determine whether the equation defines y as a function of x. y = |x|
A. function
B. not a function
Answer: A
Mathematics
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Provide an appropriate response.Evaluate 
by writing the integrand as an integral.
A. ln 
B. 
C. 
D. ln 
Mathematics
Solve the system by the substitution method.xy = 27x2 + y2 = 90
A. {(3, 9), (-3, -9), (9, 3), (-9, -3)} B. {(3, 9), (-3, -9), (3, -9), (-3, 9)} C. {(-3, -9), (-9, -3), (-3, 9), (-9, 3)} D. {(3, 9), (9, 3), (3, -9), (9, -3)}
Mathematics
A sequence c0, c1, c2, . . . satisfies the recurrence relation ck = 6ck?1 ?9ck?2 with initial conditions c0 = 1 and c1 = 6. Find an explicit formula for the sequence.
What will be an ideal response?
Mathematics
List the critical values of the related function. Then solve the inequality.
> 0
A. - 
; 
B. 0; (0, ?)
C. - 
; 
D. 
; 
Mathematics