Hurry i'm following scatter plot represents the scores of thirteen students on a geography test compared to the number of hours that each student studied for the test. use the line of best fit to predict the score of a student who studied three hours for the test.
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Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Find the interior angle of a regular polygon which has 6 sides

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte