How many solutions does the graph of x2 + 100 = 0 have?

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅

A0.40 kg soccer ball is kicked so that its incoming velocity of 5 m/s is changed to an outgoing velocity of -25 m/s. what impulse does the player apply to the ball?