Graph the function over a one-period interval.y = -2 sin 4 - 1

A.

B.

C.

D.

Answer: A

Mathematics

Use the method of variation of parameters to solve the differential equation.3 + 140 + 225y = -10e3x

A. y = C₁e^-45x + C₂e^-5x/3 + e^3x
B. y = C₁e^-45x + C₂e^-5x/3 - e^3x
C. y = C₁e^-45x + C₂e^-5x/3 - e^3x
D. y = C₁e^-45x + C₂e^5x/3 - e^3x

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Mathematics

Use a computer algebra system (CAS) to solve the given initial value problem.y' = , y(0) = 4

A. y = 7 ln- 7x + 4
B. y = 8 tan^-1 x - x + 4
C. y = 14 tan^-1 x - 7x + 4
D. y = 14 tan^-1 x - 7x

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Mathematics

Find the sample standard deviation.3, 3, 18, 10, 6, 14, 13, 18, 12

A. 29.5 B. 33.2 C. 5.8 D. 5.4

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Mathematics

Factor the expression. Express your answer so that only positive exponents occur. x3/7 - x2/7

A. x2/7(x1/7) B. x2/7(x1/7 + 1) C. x2/7(x1/7 - x) D. x2/7(x1/7 - 1)

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Mathematics