Write the following as a sum using powers of 10 to show place value.540.81
A. 5 ? 101 + 4 ? 100 + 8 ? 10-1 + 1 ? 10-2
B. 5 ? 103 + 4 ? 102 + 0 ? 101 + 8 ? 10-1 + 1 ? 10-2
C. 5 ? 102 + 4 ? 100 + 8 ? 10-1 + 1 ? 10-2
D. 5 ? 102 + 4 ? 101 + 0 ? 100 + 8 ? 10-1 + 1 ? 10-2
Answer: D
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Solve the problem.At noon, ship A was 14 nautical miles due north of ship B. Ship A was sailing south at 14 knots (nautical miles per hour; a nautical mile is 2000 yards) and continued to do so all day. Ship B was sailing east at 
and continued to do so all day. The visibility was 5 nautical miles. Did the ships ever sight each other?
A. Yes. They were within 3 nautical miles of each other. B. No. The closest they ever got to each other was 7.6 nautical miles. C. Yes. They were within 4 nautical miles of each other. D. No. The closest they ever got to each other was 8.6 nautical miles.
Solve the problem.On average, 9.6 % of the money consumers spend in supermarkets in England goes to the purchase of snacks and baked goods, which is four times the percent of money spent on cereals and rice. What percentage of the money spent by consumers in England's supermarkets is for the purchase of cereal and rice?
A. 1.2% B. 2.4% C. 3.4% D. 2.9%
Describe how to obtain the graph of the given monomial function from the graph of g(x) = xn with the same power n.f(x) = 
x4
A. Horizontally shrink by a factor of 
B. Vertically shrink by a factor of 
, and then reflect across x-axis
C. Vertically stretch by a factor of 3, and then reflect across x-axis
D. Vertically shrink by a factor of 
Write the first five terms of the geometric sequence.a1 = 3; r = 
A. 
, 
, 
, 
, 
B. 3, 12, 48, 192, 768
C. 3, 
, 
, 
, 
D. 3, 
, 
, 
, 4