Simplify.(2cos x - 2sin x)2 + 4 sin 2x
A. 8
B. 4
C. 2cos x + 2sin x
D. 2cos2x
Answer: B
Mathematics
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Graph the parabola whose equation is given.y = 4x2 + 40x + 98
A. 
B. 
C. 
D. 
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Find the unit vector having the same direction as v.v = -3i + j
A. u = - 
i - 
j
B. u = - 
i + 
j
C. u = -3
i + 
j
D. u = - 
i + 
j
Mathematics
Solve the equation for exact solutions.arcsin x + 2 arctan x = ?
A. 
B. 
C. 
D. 
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Solve the problem.A country club wants to provide seating for 206 people in its banquet room. If the club has 19 tables that seat 6 people, how many tables does it need that seat 4 people?
A. 25 tables B. 24 tables C. 22 tables D. 23 tables
Mathematics