Solve the problem.Find the perimeter of the geometric figure.Triangle: sides2r2 + 5r r3 + r2 + 4 5r + 9
A. r3 + 3r2 + 10r + 13
B. 3r3 + 11r + 13
C. r3 + 2r2 + 11r + 13
D. 3r3 + r2 + 10r + 13
Answer: A
Mathematics
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Perform the indicated operations. Simplify the result.
+ 
A. x - 6
B. x + 3
C. x - 3
D. 
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Solve.It takes 9 hours for 8 people to paint a house. How long will it take 3 people to do the job?
A. 26.4 hr B. 24 hr C. 3 hr D. 3.4 hr
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Find the mean. Round to the nearest tenth unless otherwise stated.Average number of defects: 8.0, 8.2, 8.8, 7.5, 8.3, 8.0, 8.7, 8.8, 7.1, 8.0, 7.5, 7.7, 7.5, 8.2, 8.2, 6.9, 8.3, 8.7
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Mathematics
Find the mode or modes.20, 23, 46, 23, 49, 23, 49
A. 46 B. 33.3 C. 49 D. 23
Mathematics