Given x2 = 81, select all possible values of x. Ella is playing with a flashlight, observing how light behaves in different situations. Sometimes she sees the light bend, indicating that it is moving at a different speed. What situation would result in this change in speed? -9
-3
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9

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

40) linda was making chocolate truffles for the first day of school. the recipe for 20 chocolate truffles is: i cup of cream 2 cups of dark chocolate she noticed this will not be enough truffles for the 42 sure that all students in each homeroom next year. to be sure that all students receive a truffle, linda must adjust her recipe. a. complete the recipe for 42 truffles cups of cream - cups of dark chocolate work: