Question 1191935
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What acute angle does a line with slope -3/2 make with a vertical line? Write answer in decimal form.
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<pre>
arctan(-3/2) = -56.31 degrees  (rounded).


This angle is in QIV.  The corresponding angle in QII is  -56.31 + 180 = 123.69 degrees.


Hence, the acute angle with vertical axis is 123.69 - 90 = 33.69 degrees.    <U>ANSWER</U>
</pre>

Solved.