Find the amplitude.y = -2 sin(3x + ?)
A. ?
B. 3
C. 2
D. -6
Answer: C
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If a country's annual production of sugar is 39,000,000 tons, estimate the number of grains of sugar produced in a year in that country. Use scientific notation. Round your answer to 4 decimal places. (Note: There are 2,000 lb per ton. Assume there are 2,260,000 grains in a pound of sugar.)
What will be an ideal response?
Find the standard form of the equation of the following conic section.center (7, 8); r = 
A. (x + 7)2 + (y + 8)2 = 5 B. (x + 8)2 + (y + 7)2 = 25 C. (x - 7)2 + (y - 8)2 = 5 D. (x - 8)2 + (y - 7)2 = 25
Provide an appropriate response.A student was trying to solve the problem 
. The student knew that he or she should set 
but was confused about whether or not he or she should set 
, or 7 = 0 and 
. How would you advise this student?
What will be an ideal response?
Evaluate.Given that log x = 4 and log y = 2, find log xy4.
A. 64 B. 12 C. 32 D. 24