Solve the problem.A generator produces an alternating current according to the equation I = 56 sin 69?t, where t is time in seconds and I is the current in amperes. What is the smallest time t such that I = 28?

A. sec
B. sec
C. sec
D. sec

Answer: A

Mathematics

Find the product.(-2x2y4)(-3x2y2)

A. 6x6y4 B. 6x4y6 C. 6xy6 D. 6xy4

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Mathematics

Identify the curve represented by the equation.x(x + 6y) = 5x2 + 6xy - 5y2 - 4

A. Ellipse B. Hyperbola C. Circle D. None of these

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Mathematics

Find the asymptotes of the hyperbola. - = 1

A. y = x, y = - x
B. y = x, y = - x
C. y = x, y = - x
D. y = x, y = - x

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Mathematics

Find an equation of variation for the given situation.y varies jointly as x and the square of z, and y = 160 when x = 8 and z = 2

A. y = 5xz²
B. y = 10xz
C. y =
D. y = 6xz²

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Mathematics