According to industry sources, online banking is expected to take off in the near future. The projected number of households (in millions) using this service is given in the following table:
Year, x012345Households, y4.57.510.013.015.618.0?
(Here, 
corresponds to the beginning of 1997.)Find an equation of the least-squares line for these data. Please round the coefficients in your equation to three decimal places. Use the result to estimate the number of households using online banking at the beginning of 2004, assuming the projection is accurate. Round the answer to three decimal places.
?
A. 
million
B. 
million
C. 
million
D. 
million
Answer: D
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Solve the problem.Your electrical bill states that you used 770 kilowatt-hours of energy in January. Determine your total electrical energy use, in joules.
A. 277,200,000 joules B. 2,772,000,000 joules C. 246,400,000 joules D. 2,464,000,000 joules
Carli and Dale want to divide fairly the chocolate-strawberry cake shown below. The total cost of the cake was $18.00. Carli values strawberry and banana equally, but values chocolate twice as much as either of these put together. Dale values chocolate three times as much as he values strawberry. Further, he values strawberry twice as much as he values banana.
In Dale's eyes, the piece shown below is worth
A. $3.00 B. $6.00 C. $4.00 D. $2.00 E. none of these
Solve the problem.Show that sin(sin-1v - cos-1v) = 2v2 - 1
What will be an ideal response?
Find the real solutions of the equation.
= 6
A. 
B. 
C. 
D. no real solution