Identify the equation as either an identity or not.
= 2 sin 2x
A. Not an identity
B. Identity
Answer: A
Mathematics
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Write the series in summation notation. Use the index i and let i begin at 1 in each summation.b3 + b4 + b5 + . . . + b14
A. 
B. 
C. 
D. 
Mathematics
If possible, find the general solution of the following system.
What will be an ideal response?
Mathematics
Solve the problem.The appliance store where the Scott family shops offers a 8% discount for paying cash. The Scott family received a discount of $60. What was their total bill before the discount?
A. $5 B. $8 C. $750 D. $500
Mathematics
Find the focus and directrix of the parabola with the given equation.y2 = 12x
A. focus: (3, 0) directrix: x = -3 B. focus: (0, -3) directrix: y = -3 C. focus: (3, 0) directrix: x = 3 D. focus: (0, 3) directrix: y = -3
Mathematics