Find the vertices of the ellipse.
+ 
= 1
A. (-8, 2), (4, 2)
B. (- 2
, 2), (2
, 2)
C. (6, 2), (-6, 2)
D. (-2 + 2
, 2), (-2 - 2
, 2)
Answer: A
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Solve the problem.The Earth rotates about its pole once every 24 hours. The distance from the pole to a location on Earth 24° north latitude is about 3617.6 miles. Therefore, a location on Earth at 24° north latitude is spinning on a circle of radius 3617.6 miles. Compute the linear speed on the surface of the Earth at 24° north latitude.
A. 1002 mph B. 947 mph C. 151 mph D. 22,730 mph
Solve the equation.
- 3 = 1
A. {-4} B. {8} C. {-8} D. {4}
Find all real solutions to the system of equations using the addition method. x2 - 2y2 = 23x2 + 2y2 = 14
A. (2, 1), (-2, -1) B. (-1, 2), (1, -2) C. (2, 1), (2, -1), (-2, 1), (-2, -1) D. (1, 2), (-1, 2), (1, -2), (-1, -2)
Solve the problem. Use 3.14 for ?.The striking circle in field hockey is a semicircle with a radius of 15.2 yd. Find the area of the semicircle.
A. 362.7328 yd2 B. 2,901.8624 yd2 C. 725.4656 yd2 D. 95.456 yd2