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can you help me?

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- Wed, 17 Dec 2014 15:56:58 EST K92q/1nw No.14537
File: 1418849818247.gif -(24799B / 24.22KB, 303x362) Thumbnail displayed, click image for full size. can you help me?
Hey guys, can anyone help with the following question? I am really stuck with it (and not through lack of trying, believe me)

A microphone has a polar pattern described as e = 1 + 1.5 * cos(angle).
Its on-axis sensitivity is given as -40dBV/Pa.
A sound source is such that it produces 75dB SPL at the microphone diaphragm.
What is the microphone output in miliVolts if the source angle is 90 degrees to the right of the microphone.

V(angle) / V(on axis) = (1+1.5 * cos(angle)) / (1+1.5 * cos(0))

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