In a regular polygon, each central angle measures 15°. How many sides does the polygon have?
What will be an ideal response?
24 sides
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The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 1/2, y = 9
A. r = 
B. r = 
C. r = 
D. r = 
Combine the complex numbers.(6 + 7i) - (-8 + i)
A. 14 + 6i B. 14 - 6i C. -14 - 6i D. -2 + 8i
Find the surface area of the figure. Use 3.14 for ?. Round your answer to hundredths.
A. 615.44 sq. in. B. 153.86 sq. in. C. 205.15 sq. in. D. 1,436.03 sq. in.
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.If the speed of light is 3.00 ×108m/sec, how long does it take light to travel 2.29 × 1011 m, the distance from the sun to Mars? Round to one decimal place.
A. 7.6 × 103 sec B. 76 sec C. 7.6 × 102 min D. 7.6 × 102 sec