Which of the following is not true about a square? O It has no right angles.
O All its sides are of equal lengths.
O It has opposite parallel sides.
O it can be classified as a rectangle.

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

I'm confused on this could anyone me and show me what i need to do to solve it.