In trapezoid abcd with bases ab and dc diagonals intersect at point o.

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b.they can have a lower impact on the environment. c.they can be used up rapidly. d.they can contribute to global warming.

Explain how earth is like a giant bar magnet. how is our magnetic field made?

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?