Solve the problem.Find the length of a rectangular lot with a perimeter of 92 meters if the length is 8 meters more than the width.
A. 46 m
B. 27 m
C. 19 m
D. 54 m
Answer: B
Mathematics
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Answer each question appropriately.Suppose the area of the region between the graph of a positive continuous function f and the x-axis from x = a to x = b is 7 square units. Find the area between the curves y = f(x) and y = 5f(x).
A. -28 square units B. 35 square units C. 42 square units D. 28 square units
Mathematics
Complete the identity.sin (? + ?) sin (? - ?) = ?
A. cos2 ? + cos2 ? B. sin2 ? - cos2 ? C. sin2 ? - sin2 ? D. cos2 ? - cos2 ?
Mathematics
Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula 
, as needed.Find the pH if [H3O+] = 7.9 × 10-3.
A. 2.9 B. 3.1 C. 2.1 D. 3.9
Mathematics
Evaluate the definite integral.
?
?
A. 
B. 
C. 
D. 
Mathematics