Find Av when Vin = 3.2 V and VO = 1.0 V.

a. -1.0 dB
b. -3.2 dB
c. -10.1 dB
d. -6.6 dB
e. -10.4 dB


c. -10.1 dB

Mathematics

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Find the mass of the wire that lies along the curve r and has density ?.r(t) = 10i + (7 - 4t)j + 3tk, 0 ? t ? 2? ; ? = 8(1 + sin 4t)

A. 16? units B. 80? units C. 20 + 80? units D. 40 + 80? units

Mathematics

How many local maxima and minima does the polynomial have? ? ?

A. 1 maximum and 1 minimum B. 1 maximum and 2 minima C. 0 maxima and 1 minimum D. 1 maximum and 0 minima E. 2 maxima and 1 minimum

Mathematics

Find the focus and directrix of the parabola with the given equation.x2 = 40y

A. focus: (0, 10) directrix: y = -10 B. focus: (0, -10) directrix: x = -10 C. focus: (10, 0) directrix: y = 10 D. focus: (10, 0) directrix: x = 10

Mathematics

If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.32a4 - 18b2

A. 2(4a2 - 3b)2 B. 2(4a2 + 3b)2 C. 32a4 - 18b2 D. 2(4a2 + 3b)(4a2 - 3b)

Mathematics