Rationalize the denominator. 
A. 
B. -1
C. 
D. 
Answer: A
Mathematics
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Use the Comparison Test to determine whether the improper integral converges or diverges.
A. converges B. diverges
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Find the number of proper subsets of the set.{car, boat, truck, train}
A. 16 B. 15 C. 14 D. 8
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Solve the equation by completing the square.x2 + 4x = 7
A. 2 + 
B. -2 ± 
C. -1 ± 
D. -2 ± 2
Mathematics
Solve.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 30 sec B. 7 sec C. 22.5 sec D. 11 sec
Mathematics