Find the amplitude or period as requested.Find the amplitude of y = 3 cos (4x - ?).
A. 3
B. 12
C. 4
D. ?
Answer: A
Mathematics
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Solve the problem.Find the mass, in metric tonnes, of sand in a box that measures 14 m × 10 m × 17 m.
A. 2890 t B. 1400 t C. 2380 t D. 3332 t
Mathematics
Perform the indicated operation.(-9x)2
A. -81x2 B. -18x2 C. 81x2 D. 9x2
Mathematics
Write the rational expression in lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Solve the system of linear equations by the method of elimination. Find (x,y) and check your solution algebraically.
?
?
A. ?(1, 4) B. ?(4, 1) C. (-?4, -1) D. (?4, -1) E. ?(1, -4)
Mathematics