Determine the constant of variation for the stated condition.s varies directly as r2, and s = 80 when r = 4.
A. k = 80
B. k = 76
C. k = 5
D. k = 
Answer: C
Mathematics
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, and the initial value of f is 7.94, find a formula for the function 
.
?
A. 
B. 
C. 
D. 
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Evaluate the expression for the given values.3x + 7y + 3; x = 0, y = 7
A. 55 B. 24 C. 10 D. 52
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Use substitution to determine whether the given ordered pair is a solution of the given equation.(2, 2); 3x + 2y = 10
A. Yes B. No
Mathematics
Use transformations to graph the function.y = -4 sin (x + 
)
A. 
B. 
C. 
D. 
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