Find the equation of variation if the following is true.Suppose that y varies directly as z and y = 43 when z = 172.
A. y = 4z
B. y = 
z
C. y = -2z
D. y = - 
z
Answer: B
Mathematics
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Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
Mathematics
Use the graph of f(x) to solve the inequality.f(x) > 0
A. x < 0 B. x > 0 C. x ? 0 D. -1.7 < x < 1.7
Mathematics
Use the definition of equality of complex numbers to find the real numbers x and y such that the equation is true.x - 5i = 6 + yi
A. x = -6, y = 11 B. x = -6, y = -1 C. x = 6, y = -5 D. x = 6, y = 5
Mathematics
Find any modes that exist.9.6, 10, 7.8, 10, 7.6
A. 10 B. 7.5 C. 9 D. 9.6
Mathematics