Simplify the expression.
A. 2
B. -2
C. -4
D. 4
Answer: B
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Find the derivative of the function.y = 4 ln sin2 2x
A. 16 cot 2x
B. 4 tan 2x
C. 
D. 
Use the product rule to simplify the expression. Write the answer in exponential form.(-5)(-5)4(-5)(-5)(-5)2
A. (-5)8 B. (-5)6 C. (-5)9 D. -59
Multiply the complex numbers and simplify powers of i.(6 - 9i)(2 + 4i)
A. 48 + 6i B. 48 - 6i C. -36i2 + 6i + 12 D. -24 - 42i
Solve the problem.A company has 12,600 employees. Of these, 
drive alone to work, 
car pool, 
use public transportation, 
cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?
A. Drive alone: 3150; car pool: 2100; public transportation: 1575; cycle: 1400; 
B. Drive alone: 3250; car pool: 2100; public transportation: 1475; cycle: 1400; other: 1000
C. Drive alone: 315; car pool: 2100; public transportation: 1575; cycle: 1400; 
D. Drive alone: 3150; car pool: 2100; public transportation: 1575; cycle: 1400; 