ILL MARK AS BRANLIEST Which is the standard form of the equation of the parabola that has a vertex of (3, 1) and a directrix of x = –2?

a) (y - 1)^2 =20 (x - 3)
b) (y - 1)^2 =-20 (x - 3)

Describe the relationship between the angles of similar triangles and the sides of similar triangles

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square