Omi67

help please I don't understand. 

Graph the functions on the same coordinate plane.

9)A and B are two points on a unit sphere. We know the space distance between A and B is sqrt2. What is the length of shortest path on the sphere that connects A to B?

6)The surface area of planet AoPS is 100 times that of Earth, and its volume is n times that of Earth. What is  n(Assume both planets are perfect spheres.)

5)The surface area of a sphere is 1. What is the surface area (including the base area) of a hemisphere with the same radius?

4)All eight vertices of a unit cube are on a sphere (i.e. the cube is inscribed in the sphere). What is the surface area of the sphere?

3)The surface area of a sphere is 36pi. Find the volume of the sphere.

1)The volume of a sphere is numerically equal to half its surface area. What is the radius of the sphere?

2)A plane cuts through a sphere with diameter 20 cm, but the closest it gets to the center is 3 cm. What is the area of the intersection of the sphere and the plane in sq cm?

Solve for G:

1. y = 2x^2 + x - 1

    y = -x - 3

2. y = -2x^2 - 2x + 3

    y = 7/2