The equation of the parabola whose focus is at (7, 0) and directrix at x = -7 is:
y = (1/28)x²
x = (1/28)y²
x = -(1/28)y²

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

For each polynomial, determine the degree and write the polynomial in descending order. a. –4x^2 – 12 + 11x^4 b. 2x^5 + 14 – 3x^4 + 7x + 3x^3

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m