Solve for y.9x = 10y - 7
A. y = 17 + 9x
B. y = 17 - 9x
C. y = 
D. y = 
Answer: C
Mathematics
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Solve the system of equations corresponding to the given matrix equation.
= 
A. {(2, -3, 9)} B. {(-3, 2, 9)} C. {(-2, 3, -9)} D. {(0, 3, -9)}
Mathematics
Graph the function.f(t) = 
cos 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Round your answer to the nearest hundredth.Determine the height of a tower if it casts a shadow 42 ft long on level ground when the angle of elevation of the sun is 20°.
A. 39.47 ft B. 122.80 ft C. 15.29 ft D. 44.70 ft
Mathematics
Sketch the graph of the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics