Mathematics, 02.06.2020 18:57 Bayabbay8380
A line segment can be drawn from each vertex of a polygon to every other vertex, forming the sides and diagonals of the polygon. A square, for example, has 4 sides and 2 diagonals. Using combinations, write an expression that would give you the total number of sides and diagonals for a polygon with n sides.
Answers: 2
Mathematics, 21.06.2019 18:50
Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?
Answers: 1
Mathematics, 21.06.2019 20:50
There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?
Answers: 1
Mathematics, 21.06.2019 22:00
Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?
Answers: 2
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