Factor 1 Consider 2 + 10x +
How many unit tiles need to be added to complete the
square and form a perfect square trinomial expression?
unit tiles
X
+X
+X
+ X
+X
+X
Factor 2
+X
+x
+
+X

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm