A geometric sequence is given. Find the common ratio and write out the first four terms.{sn} = {52n}
A. r = 25; s1 = 25, s2 = 625, s3 = 15,625, s4 = 390,625
B. r = 5; s1 = 25, s2 = 625, s3 = 15,625, s4 = 390,625
C. r = 25; s1 = 10, s2 = 20, s3 = 30, s4 = 40
D. r = 10; s1 = 10, s2 = 20, s3 = 30, s4 = 40
Answer: A
You might also like to view...
Let ? be an acute angle. Find the unknown trigonometric value using the given information.tan ? if cot ? = - 
A. - 
B. - 
C. 
D. 
Solve the problem using matrices.In a study of heat transfer in a grid of wires, the temperature at an exterior node is maintained at a constant value (in °F) as shown in the figure. When the grid is in thermal equilibrium, the temperature at an interior node is the average of the temperatures at the four adjacent nodes. For instance 
Find the temperatures T1, T2, and T3 when the grid is in thermal equilibrium. 
132°180°
A. T1 = 
°F, T2 = 
°F, T3 = 
°F
B. T1 = 97°F, T2 = 88°F, T3 = 
°F
C. T1 = 
°F, T2 = 
°F, T3 = 
°F
D. T1 = 194°F, T2 = 88°F, T3 = 
°F
Solve.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane in still air.
A. 525 mph B. 550 mph C. 605 mph D. 435 mph
The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss). 
?
List the months in which a profit was made in order from least profitable month to most profitable month.
A. June, May, October, February B. February, October, May, June C. December, February, November, September D. September, November, February, December