Identify the equation without applying a rotation of axes.2x2 + 12xy + 36y2 - 4x + 4y + 3 = 0
A. ellipse
B. hyperbola
C. parabola
D. not a conic
Answer: A
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Write the sum without sigma notation and evaluate it.
A. -cos 2? + cos 4? - cos 6? = -1 B. cos 2? - cos 4? + cos 6? = - 1 C. cos 2? + cos 6? = 2 D. cos 2? - cos 4? + cos 6? = 1
Solve the problem.A restaurant serves dessert in a cone-shaped dish with a diameter of 5 cm. If the dish is 9 cm deep, how many cubic centimeters of dessert can the dish hold? Use 3.14 as the approximate value of ?. Round to the nearest hundredth if necessary.
A. 176.63 cm3 B. 47.1 cm3 C. 58.88 cm3 D. 235.5 cm3
Write the ratio in lowest terms.4
tons to 4
tons
A. 
B. 
C. 
D. 
Solve the system using the inverse matrix method.
A. x = -1, y = 3; (-1, 3) B. x = -3, y = 1; (-3, 1) C. x = 1, y = -3; (1, -3) D. x = 3, y = -1; (3, -1)