Straight angle has how many lines of symmetry

It bisects the triangle at the angle 90° . So that , we can say that an right angle triangle has only one line of symmetry which cuts triangle to two equal halves.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.