Simplify. Assume radicands of square roots are positive.()2

A. 16x2
B. 4x
C.
D. 8x

Answer: B

Mathematics

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Solve the differential equation subject to the initial conditions.x2 - 3xy = -x5 sec x tan x; x > 0; x = ? when y = 0

A. y = -  - x2 , x > 0
B. y = -  - x3 , x > 0
C. y =  + x2 , x > 0
D. y =  + x3 , x > 0

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Mathematics

Solve the problem.For what numbers x, 0 ? x ? 2?, does sin x = -1?

A. ?
B.
C. , 
D. none

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Mathematics

Multiply and leave your answer in exponent form.(210)(211)

A. 2110 B. 421 C. 2  D. 221

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Evaluate.2 + (-12) - (-14)

A. 4 B. -4 C. 0 D. -24

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Mathematics