Find the perimeter of the composite figure. Use 3.14 as an approximation for ?.
A. 38.6 m
B. 51.1 m
C. 59.1 m
D. 46.6 m
Answer: A
Mathematics
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Find the exact value using a double-angle identity.sin(180°)
A. - 
B. -1
C. 0
D. 1
Mathematics
Rewrite each number using scientific notation before performing the operation. Leave your answer in scientific notation form.(500)(40,000)
A. 2.0 × 109 B. 2.0 × 107 C. 2.0 × 106 D. 2.0 × 108
Mathematics
Use truth tables to test the validity of the argument.p ? ~q
? p ? q
A. Invalid B. Valid
Mathematics
The scores on a 30-point multiple-choice exam are given in the following frequency table:
The median score on the exam is
A. 25. B. 26.5. C. 26. D. 25.5. E. none of these
Mathematics