Which statement is true?
a. the lines of symmetry in a semicircle are too many to count.
b. an equilateral triangle has only one line of symmetry.
c. a butterfly has only one line of symmetry.
d. a regular hexagon has only four lines of symmetry.

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Find the domain of the following expression: 1/(√x)-2