Find the integral.
A. 
tan x + C
B. tan 2x + C
C. sec 2x + C
D. 
tan2 x + C
Answer: D
Mathematics
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Find the missing factor.3x2 - 14x + 15 = (3x - 5)( )
A. 5 - 3x B. x - 3 C. x + 3 D. 3x + 10
Mathematics
Solve the problem.A certain radioactive isotope has a half-life of approximately 950 years. How many years to the nearest year would be required for a given amount of this isotope to decay to 75% of that amount?
A. 394 years B. 319 years C. 1900 years D. 238 years
Mathematics
Solve the system of linear equations.
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Solve the inequality.30x + 48 ? 6(4x + 4)
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Mathematics