Determine whether the given relationship defines a function. If so, identify the independent and dependent variable, and why the relationship is a function.The balance b in a checking account on a given day x.
A. Yes; x, b; there is one balance b on a given day x.
B. No
Answer: B
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Given that the x- and y-coordinates of a moving particle are given by the indicated parametric equations, find the magnitude and direction of the velocity for the specific value of t.x = 6t2 - 5t + 3, y = -4t2 + 7t - 9, t = 3
A. 35.36, 151.3° B. 51.40, 331.3° C. 35.36, 331.3° D. 51.40, 151.3°
The pair of triangles is congruent. List the corresponding angles and sides. 
A. ?1 corresponds to ?6; ?2 corresponds to ?4; ?3 corresponds to ?5; 
corresponds to 
; 
corresponds to 
; 
corresponds to 
B. ?1 corresponds to ?6; ?2 corresponds to ?4; ?3 corresponds to ?5; 
corresponds to 
; 
corresponds to 
; 
corresponds to 
C. ?1 corresponds to ?2; ?3 corresponds to ?4; ?5 corresponds to ?6; 
corresponds to 
; 
corresponds to 
; 
corresponds to 
D. ?1 corresponds to ?6; ?2 corresponds to ?5; ?3 corresponds to ?4; 
corresponds to 
; 
corresponds to 
; 
corresponds to 
Find the quotient. Write the answer in standard form.
A. 
+ 
i
B. 
- 
i
C. 
+ 
i
D. 15 + 5i
Find the real or imaginary solutions by using the quadratic formula.3x2 + 4 = x
A. 
B. 
C. 
D. 