Solve.A comet follows the hyperbolic path described by 
where x and y are in millions of miles. If the sun is the focus of the path, how close to the sun is the vertex of the path?
A. 50 million mi
B. 8.7 million mi
C. 2.1 million mi
D. 5 million mi
Answer: C
Mathematics
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Multiply. Then simplify if possible. Assume that all variables represent positive values.9
? 4
A. 216
B. 1296
C. 36
D. 216
Mathematics
Solve for the variable.-7x = 63
A. -70 B. 70 C. -9 D. 1
Mathematics
Solve the problem.A pendulum bob swings through an arc 80 inches long on its first swing. Each swing thereafter, it swings only 71% as far as on the previous swing. What is the length of the arc after 10 swings? Round your answer to two decimal places, if necessary.
A. 511.2 inches B. 1.85 inches C. 2.6 inches D. 3.67 inches
Mathematics
Evaluate.
A. 13.5 B. -13.5 C. -9 D. 27
Mathematics