Find the perimeter. Use 3.14 for ? when needed.
A. 167.316 km
B. 72.67 km
C. 136.815 km
D. 56.185 km
Answer: D
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Solve the equation by the zero-factor property.(9y + 19)(7y + 15) = 0
A. 
B. 
C. 
D. 
Solve the given system of equations algebraically.4x2 - 3y2 = -112x2 + 5y2 = 53
A. x = 2, y = 3; x = -2, y = 3; x = 2, y = -3; x = -2, y = -3 B. x = 2, y = 3; x = 3, y = 2; x = -2, y = -3; x = -3, y = -2 C. x = -2, y = -3; x = -3, y = -2 D. x = 2, y = -3; x = 2, y = 3
Determine whether the given expression is a polynomial. If it is, write it in standard form.2x - 5 + 5x2
A. Yes; 5x2 + 2x - 5 B. No
Solve.A comet has an orbit that is hyperbolic in shape with Mars as the focus of the hyperbola. The comet heads towards Mars, comes within 310 million miles of Mars, but then veers off as shown in the picture. As it travels into the distance, it moves closer and closer to the line y = 4x. Find the equation that describes the path of the comet. 
A. The equation is 
- 
= 1, where x and y are measured in millions of miles.
B. The equation is 
- 
= 1, where x and y are measured in millions of miles.
C. The equation is 
- 
= 1, where x and y are measured in millions of miles.
D. The equation is 
- 
= 1, where x and y are measured in millions of miles.