Drag numbers into the blanks to show that f(x) = x - 2x + 5 has exactly 2 roots in the set of complex numbers by completing the square. x² - 2x+5=0
2-2x =
x² - 2x+
(x - 1)2 =
(x - 1) = +
Therefore, there are two roots of f(x), x =
and x =
-5
-4
-3
-2
- 1
0
1
2
3
4
5
21
1 + 2
1 -2i
-1 + 2i
-1-2i

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Drag each tile into the correct box. not all tiles will be used. find the tables with unit rates greater than the unit rate in the graph. then tenge these tables in order from least to greatest unit rate

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start