Giải phương trình: 3x^2 + 3x - 6 = 0

On their way home from school. terri and evie started walking out for two blocks and then running for three blocks and then repeating that pattern. if they can walk a block in 2 minutes and run a block and 45 seconds how long will it take them to go 18 blocks?

Write an equation for the function that includes the points (2,100)and (3,100)

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16