Which is the general form of the equation of the circle shown?
x2 + y2 + 4x – 2y – 4 = 0
x2 + y2 + 4x – 2y + 2 = 0
x2 + y² – 4x + 2y – 4 = 0
x2 + y² – 4x + 2y + 2 = 0

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Consider the triangle. which shows the order of the angles from smallest to largest? angle a, angle b, angle c angle b, angle a, angle c angle b, angle c, angle a angle c, angle a, angle b

The angle of elevation from point a to the top of a cliff is 38 degrees . if point a is 80 feet from the base of the cliff , how high is the cliff ?