Solve the problem.The formula T = .07D1.5can be used to approximate the duration of a storm, where T is the time in hours and D is the diameter of the storm in miles. A storm that is 6.8 miles in diameter is heading toward a city. How long can the residents of the city expect the storm to last? Round your answer to the nearest hundredth of an hour.
A. 1.24 hr
B. 2.47 hr
C. 0.67 hr
D. 2.77 hr
Answer: A
Mathematics
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Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
C. 
+ 
+ 
D. 
- 
+ 
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Find (P ? Q)(x).P(x) = x + 3; Q(x) = x2 - 9
A. x3 - 6x2 - 27 B. x2 - 6x - 27 C. x3 + 3x2 - 6x - 27 D. x3 + 3x2 - 9x - 27
Mathematics
Use mathematical induction to prove the statement is true for all positive integers n.7 + 14 + 21 + . . . + 7n = 
What will be an ideal response?
Mathematics
Determine whether or not the function is one-to-one.
A. Yes B. No
Mathematics