Find a function whose graph matches the figure.

A. 4 sin 
B. 4 sin 
C. 4? sin 
D. 4 sin 


Answer: D

Mathematics

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Graph the polar equation.r = 6 - 7 cos ?

A.

B.

C.

D.

Mathematics

Graph the plane curve given by the parametric equations. Then find the equivalent rectangular equation.x = t3 + 1, y = t3 - 15; -2 ? t ? 2

A. y = - x2; -4 ? x ? 4

B. y = x - 16; -7 ? x ? 9

C. y = x3; -3 ? x ? 1

D. y = - x - 16; -7 ? x ? 9

Mathematics

Solve the problem.Two voltages, V1 = 80 sin(110?t) and  are added in a circuit to produce the sum   Graph V in  by  and use the graph to estimate values for a and k so that 

A. a = 170; k = 1.0808 B. a = 170; k = 373.5108 C. a = 170; k = 169.317 D. a = 17; k = 1.0808

Mathematics

Provide an appropriate response.You are finding the partial fraction decomposition of the expression  .You should ...

A. Use long division to divide the numerator by the denominator B. Solve the equation x2 - 7x + 12 = A(x - 7) + B(x - 6) + C(x + 7) C. Solve the equation x2 - 7x + 12 = A(x + 7) + B(x - 6) + C(x + 7) D. Solve the equation x2 - 7x + 12 = (Ax + B)(x2 - 13x + 42) + C(x + 7)

Mathematics