Evaluate the integral.

A. 24
B. 0
C. 16
D. 23.2


Answer: A

Mathematics

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Consider below the branching tree diagram based on the number per 3000 American adults. LetT = the set of Americans who like classical music R = the set of Republicans who like classical music D = the set of Democrats who like classical music I = the set of Independents who like classical musicDetermine whether the statement is true or false.Let M = the set of Independent men who like classical music  W = the set of Independent women who like classical musicThe set of elements in M and W combined is equal to set I.

A. True B. False

Mathematics

Solve the problem.The chart represents the amount of fuel consumed by a machine used in manufacturing. The machine is turned on at the beginning of the day, takes a certain amount of time to reach its full power (the point at which it uses the most fuel per hour), runs for a certain number of hours, and is shut off at the end of the work day. The fuel usage per hour of the machine is represented by a periodic function. When does the machine first reach its full power?

A. After 2 hours B. After 14 hours C. After 4 hours D. After 7 hours

Mathematics

Find the length of the third side of the right triangle. Where appropriate, give both an exact answer and an approximation to three decimal places.

A. 10 B. 9 C. 7 D. 8

Mathematics

Solve the equation.x2 + x + 4 = 0

A.  ± 
B.  ± i
C. -  ± i
D. -  ± 

Mathematics