Solve the problem. Round to the nearest tenth when necessary.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. 4.7 million mi
B. 7.1 million mi
C. 1.3 million mi
D. 36 million mi
Answer: C
Mathematics
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Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) + n(A ? B) = n(A) + n(B)
A. True B. False
Mathematics
Find the perimeter.
A. 125 m B. 130 m C. 170 m D. 85 m
Mathematics
Change the given form into the decimal form.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Factor completely.9x2 + 25
A. (3x - 5)2 B. (3x + 5)2 C. Prime D. (3x + 5)(3x - 5)
Mathematics