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Find the acute angle, in degrees, between the lines.
-3x - y = 16 and 2x + y = -13
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A standard or common request made in a professional setting, often for regular operations or procedures.
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To make something clear or easy to understand by describing or giving information about it.
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To provide valid reasons or evidence to support an argument or action.
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A statement made about something, usually without providing evidence or proof, often requiring verification.
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