Perform the operation.
A. 0.45939538
B. 2.65679782
C. 130.7425
D. 11.7926793
Answer: B
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Determine the phase shift of the function.y = 4 sin (4?x - 3)
A. 
B. 
C. - 
D. -3
Write the whole number in expanded form.10,690
A. 1000 + 60 + 9 B. 10,000 + 6000 + 90 C. 10,000 + 600 + 90 D. 1000 + 600 + 9
Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find [H3O+] if the pH = 6.
A. 1.0 × 10-6 B. 2.0 × 106 C. 1.0 × 106 D. 3.0 × 10-6
Interpret the linear equation.The monthly cost of a certain long distance service is given by the linear function 
where y is in dollars and x is the amount of time in minutes called in a month. Find and interpret the slope and y-intercept of the linear equation.
A. m = 0.08; The number of minutes called in a month increases 0.08 for every dollar spent. b = 7.95; The number of minutes that can be called when x = 0 is 7.95. B. m = 7.95; The number of minutes called in a month increases 7.95 for every dollar spent. b = 0.08; The number of minutes that can be called when x = 0 is 0.08. C. m = 7.95; The cost of the long distance service increases $7.95 for every 1 minute called. b = 0.08; The cost of the long distance service is $0.08 if no calls are made for the month. D. m = 0.08; The cost of the long distance service increases $0.08 for every 1 minute called. b = 7.95; The cost of the long distance service is $7.95 if no calls are made for the month.