Solve the problem.Given that the polar equation r = a(1 - e2)/(1 + e cos ?) models the orbits of the planets, estimate the smallest possible distance between Earth, for which 
and 
and Venus, for which 
and 
A. Zero astronomical units
B. About 0.2 astronomical units
C. About 0.4 astronomical units
D. About 2 astronomical units
Answer: B
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Solve. Write results using scientific notation.The national debt of a small country is $7,150,000,000 and the population is 2,304,000. What is the amount of debt per person?
A. $3.10 x 106 B. $3.10 x 103 C. $3.10 D. $31.00 x 102
Write the ratio as a fraction in lowest terms. Be sure to make all necessary conversions.5 pints to 7 cups
A. 
B. 
C. 
D. 
Complete the identity.
= ?
A. tan (2?). B. 2 sin (10?) C. 2 sin (5?) sin (2?) D. 2 cos (5?) sin (2?)
Give a brief description for the person named in problem, telling how they were related to the development of computers. ? J. Presper Eckert
What will be an ideal response?