Restate the fact as indicated.The population of the United States in 2000 was roughly 280 million. Express this as the number of people per square mile. The land area of the United States is roughly 3,536,000 square miles.

A. 0.8 people per square mile
B. 79 people per square mile
C. 8 people per square mile
D. 790 people per square mile


Answer: B

Mathematics

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Find factors or multiples as indicated for the number or numbers given.List the first 5 multiples of 7 starting with 0 ? 7 = 0

A. 0 ? 7 = 7; 1 ? 7 = 7; 2 ? 7 = 14; 3 ? 7 = 21; 4 ? 7 = 28; 5 ? 7 = 35 B. 0 ? 7 = 0; 1 ? 7 = 7; 2 ? 7 = 14; 3 ? 7 = 21; 4 ? 7 = 28; 5 ? 7 = 35 C. 0 ? 7 = 0; 1 ? 7 = 8; 2 ? 7 = 9; 3 ? 7 = 10; 4 ? 7 = 11; 5 ? 7 = 12 D. 1 ? 7 = 7; 2 ? 7 = 14; 3 ? 7 = 21; 4 ? 7 = 28; 5 ? 7 = 35

Mathematics

Solve the problem. Round to the nearest cent.The list price of 2 dozen blank cassettes is $47. Find the dealer's cost per cassette if a series discount of   is offered.

A. $38.07 B. $0.37 C. $1.57 D. $1.59

Mathematics

Use differentials to approximate the arc length of the graph of the equation from P to Q. Round answer to four decimal places. Select the correct answer.

P (3,12), Q (3.2, 13.24)
a. 6.0828
b. 3.6497
c. 1.2166
d. 2.4331

Mathematics

Graph the function and then find the specified limit. When necessary, state that the limit does not exist.f(x) = -2x2; f(x) 

A. f(x) = 0

B. f(x) = 0

C. f(x) = -2

D. f(x) = 2

Mathematics