Write the augmented matrix for the system. 2x + 4z = 14 3y - 2z = 16 2x + 5y - 2z = 30
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Write the equation of a sine function that has the given characteristics.Amplitude: 2Period: ?Phase Shift: 
A. y = 2 sin (2x - 3)
B. y = sin (2x + 3)
C. y = 2 sin 
D. y = 2 sin 
Mathematics
Add or subtract as indicated. Simplify, if necessary.- 
- 
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
The graph of a one-to-one function f is given. Draw the graph of the inverse function f-1 as a dashed line or curve.f(x) = 
A. 
B. 
Mathematics