The distance between a planet and a star is 210,000,000 km. Light travels 300,000,000 m in 1 s. How long does it take for light to reach the planet from the star?

A) 70,000 seconds
B) 7000 seconds
C) 7 seconds
D) 70 seconds
E) 700 seconds


E) 700 seconds

Mathematics

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Provide an appropriate response.Graph the function y = f(x) = -x2 + 5 - 4 and indicate the coordinates of the vertex and intercepts.

What will be an ideal response?

Mathematics

Solve.To trim the edges of a rectangular table cloth, 48 feet of lace are needed. The length of the table cloth is exactly one-half its width. What are the dimensions of the table cloth?

A. length: 8 ft; width: 16 ft B. length: 16 ft; width: 8 ft C. length: 4 ft; width: 8 ft D. length: 16 ft; width: 32 ft

Mathematics

Solve the problem.A tightrope walker located at a certain point deflects the rope as indicated in the figure. If the weight of the tightrope walker is 115 pounds, how much tension is in each part of the rope? Round your answers to the nearest tenth. 

A. tension in the left part: -120.3 lb; tension in the right part: 57.7 lb B. tension in the left part: -142.9 lb; tension in the right part: 68.6 lb C. tension in the left part: -608.9 lb; tension in the right part: -616.4 lb D. tension in the left part: 881.3 lb; tension in the right part: 892.1 lb

Mathematics

Solve the problem.The graph models the monthly average temperature y in degrees Fahrenheit for a city in the United States, where x is the month. Find and interpret the amplitude.

A. The amplitude is 28 and represents the temperature range. B. The amplitude is 59 and represents the midpoint of the monthly average temperatures. C. The amplitude is 28 and represents half of the temperature range. D. The amplitude is 56 and represents half of the temperature range.

Mathematics