Solve the problem.Given that the polar equation r = 
models the orbits of planets about the sun, estimate the closest approach of a planet for which 
and 
to the sun.
A. 17 astronomical units
B. 6 astronomical units
C. 13 astronomical units
D. 25 astronomical units
Answer: C
Mathematics
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Solve the problem.Mark can remember only the first 5 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0. If Mark were to dial all of the possible numbers and if it takes him 17 seconds to try each one, how long would it take to try every possibility?
A. 25.5 min B. 2.8 min C. 28.3 min D. 5.7 min
Mathematics
P( X = 7); X is Binomial(12, 0.7).
Find the probability for the given random variable.
Mathematics
Write the ratio in fractional notation in lowest terms.14 disks to 29 disks
A. 
B. - 
C. - 
D. 
Mathematics
Solve the equation.0.05y + 0.09(700 - y) = 0.21y
A. 157.5 B. 504 C. 15.75 D. 252
Mathematics