Find the mean for the given frequency distribution.
A. 64.1
B. 286.7
C. 242.9
D. 271.5
Answer: C
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Find the domain and range.{(-9,-9), (1,-8), (12,1), (8,-7)}
A. domain = {1, -9, 8, 12}; range = {-8, -8, -9, -7, 1} B. domain = {1, -9, 8, 12}; range = {-8, -9, -7, 1} C. domain = {-8, -9, -7, 1}; range = {1, -9, 8, 12} D. domain = {1, -9, 8, 12}; range = {-8, 9, -9, -7, 1}
Solve the problem.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 9 meters?
A. 10.0 sec B. 2.8 sec C. 3.0 sec D. 13.5 sec
Provide the proper response.A homework problem was "Find 
% of $2300." Student answers were $5.75, $57.5, $575, and $5750. Which is correct? What mistakes were made in getting the answers that are wrong?
What will be an ideal response?
Evaluate by performing the given operations.-21 + 6 - 43 - (-5) + 2
A. -51 B. 25 C. -61 D. 9