In ?ABC, if a = 10, b = 11 and ?C = 85°, find ?A, ?B and c. Round to the nearest tenth.

?A = 44.6, ?B = 50.4 and c = 14.2.

Mathematics

Solve the equation for the unknown quantity x.44x = 30

A. 1.63 B. 3.68 C. 0.61 D. 1.64

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Mathematics

Solve the given differential equation.2 + 9 + 9y = 2x

A. y = c₁e^-3x + c₂e^-3x/2 +  + x
B. y = c₁e^3x + c₂e^3x/2 -  + x
C. y = c₁e^-3x + c₂e^-3x/2 -  + x
D. y = c₁e^-3x + c₂e^-3x/2 -  - x

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Mathematics

Find the determinant of the given matrix.

A. -10 B. -4 C. 4 D. 44

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Mathematics

Simplify the expression.4 sin 2x cos 2x

A. 2 sin 4x
B. cos 8x
C. cos 4x
D. sin 16x

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Mathematics