Solve the equation by first multiplying both sides through by an appropriate power of 10 so that the equation contains integers only.1.1x - 3 - 0.6x = 16.5
A. 39
B. 11.471
C. 33.6
D. 3.9
Answer: A
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The number N, in millions, of Americans with Internet access t years after 1990 is modeled by the function
.
According to this model, what is the maximum number of Americans who will ever have Internet access? Round your answer to two decimal places , if necessary.
?
A. 198.8 million B. 99.40 million C. 2.16 million D. 91 million
Graph the exponential function.y = 5-x
A. 
B. 
C. 
D. 
Find the mass of the wire that lies along the curve r and has density ?.r(t) = 10i + (7 - 3t)j + 4tk, 0 ? t ? 2? ; ? = 4(1 + sin 4t)
A. 40? units B. 8? units C. 10 + 40? units D. 20 + 40? units
Find the equation of the circle satisfying the given conditions.Center at (5, -2) and tangent to the x-axis.
A. (x - 5)2 + (y + 2)2 = 4 B. (x - 5)2 + (y + 2)2 = 25 C. (x - 5)2 + (y + 2)2 = 2 D. (x - 5)2 + (y + 2)2 = 5