Use the range rule of thumb to approximate the standard deviation.A distribution of data has a maximum value of 81, a median value of 49, and a minimum of 17. Round results to the nearest tenth.
A. 12.8
B. 16.0
C. 8.5
D. 32.0
Answer: B
Mathematics
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Use a graphing calculator to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.
A. 69 B. 240 C. -732 D. -2460
Mathematics
Perform the indicated operation and, if possible, simplify.
? 
A. 0
B. 2
C. 1
D. 
Mathematics
Graph the equation.(x - 5)2 + (y + 5)2 = 4 
A. 
B. 
C. 
D. 
Mathematics
A rectangle length is five times as long as it is wide. Its perimeter is 540 cm. Find the length and the width of the rectangle.
A. The width is 225 cm, The length is 43 cm. B. The width is 45 cm, The length is 225 cm. C. The width is 44 cm, The length is 226 cm. D. The width is 43 cm, The length is 227 cm. E. The width is 35 cm, The length is 235 cm.
Mathematics