Evaluate.- + + (5 + )

A. -19
B. -5
C. 7
D. 5

Answer: D

Mathematics

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Solve the given differential equation.3 + 127 + 164y = -6e3x

A. y = c₁e^-41x + c₂e^-4x/3 - e^3x
B. y = c₁e^-41x + c₂e^4x/3 - e^3x
C. y = c₁e^-41x + c₂e^-4x/3 + e^3x
D. y = c₁e^-41x + c₂e^-4x/3 - e^3x

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Mathematics

Find y '.y = (3x - 4)(3x3 - x2 + 1)

A. 27x3 + 45x2 - 15x + 3 B. 36x3 - 15x2 + 45x + 3 C. 9x3 + 15x2 - 45x + 3 D. 36x3 - 45x2 + 8x + 3

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Mathematics

Find the missing angle or angles.

A. 147° B. 157° C. 161° D. 139°

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Mathematics

Evaluate the radical expression if it is a real number. Use a calculator to approximate irrational numbers to the nearest hundredth. If the expression is not a real number, so state.

A.
B.
C.
D. not a real number

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Mathematics