Solve the problem.Horace's mean average on five exams is 83.4. Find the sum of his scores.
A. 417
B. 445
C. 347
D. 432
Answer: A
Mathematics
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Find the product.(-2m4z4)(5m3z2)
A. -10mz6 B. -10m6z7 C. -10m7z6 D. -10mz7
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Graph the function. Show at least one period.y = -3 sin 
A. 
B. 
C. 
D. 
Mathematics
Translate to a proportion and solve. 665 is what percentage of 95?
A. 
%
B. 70%
C. 700%
D. 7%
Mathematics
Solve the problem.The speed of sound is approximately 1089 feet per second in a particular medium. Calculate this speed in miles per hour. Round to the nearest tenth.
A. 732.5 mi./hr. B. 742.5 mi./hr. C. 12.4 mi./hr. D. 745.5 mi./hr.
Mathematics