Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = 4x5 - 2x4 + 8x3 - 7
A. 1 or 3 positive; 0 negative
B. 0, 2, or 4 positive; 0 negative
C. 1 or 3 positive; 1 or 3 negative
D. 1 positive; 1 or 3 negative
Answer: A
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Use the distributive property to write the expression without parentheses. Then simplify, if necessary.7(5x + 6) - 4
A. 35x + 14 B. 35x + 2 C. 35x + 38 D. 12x + 9
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
Calculate the Huntington-Hill number.City A: population 4800, 12 representatives
A. 147,692.408 B. 147,702.308 C. 147,693.308 D. 147,692.308
Solve the problems.Alex has saved $476 at the bank. He wants to accumulate $1,750 for a trip to soccer camp. What percent of his goal has been reached?
A. 4% B. 27.2% C. 40% D. 0.272%