Each coin will either land as a head or a tail. - 2 possible results.
for 5 coins its 2*2*2*2*2 = 32 different results.
let me lie down this prism.
Check the picture below.
so the prism is really 6 rectangles stacked up to each other at the edges, so we can simply get the area of each rectangle and sum them up.
4 mph is a rate, and is represented by a straight line thru the origin with slope 4/1.
Draw a set of coordinate axes and label them t (for time) and d(for distance).
Start with your pencil point at the origin. Arbitrarily move this point 3 spaces to the right, and from there move it 4 spaces up. You'll be at (3,4).
Draw a straight line from the origin (0,0) to the point (3,4).
12x+9= 45, x =3 3 is the answer
