Built in solving the equation0=x2-5x-4 Using the quadratic formula. Which value is the negative real number solution to her quadratic equation

Solve the system of equations. y= 2x y= x^2 - 15

The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4πr2. write your answer in scientific notation.