Solve x2 + 6x = 7 by completing the square. Which is the solution set of the equation? O {-7, 1} O 1-3 - 10, -3 + 10) O {3 - 10,3 + 10) O {1, 7}

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

75%

step-by-step explanation:

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5