9 X 1/2 = 4 1/2
or
9 X 0.5 = 4.5
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2/3 * 9 = 6
3*pi = 9.424777961 to nine decimal places.
yes
The supplement of an angle x is equal to 180 - x. The measure of an angle that is nine times its supplement can be written as: x = 9(180 - x) You can then solve for the measure of the angle x: x = 1620 - 9x 10x = 1620 x = 162 Therefore, that angle which is nine times its supplement is itself 162 degrees.
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