Which graph represents the solution set for the quadratic inequality x2 + 2x + 1 > 0? -5 4 -3 -2 -1 0
1.
2
3
45 x
-5 -4 -3 -2 -1 0 1
2
3 4 5
X
-5 -4 -3 -2 -1 0 1
2
3 4
5
Х
- 5 4 -3 -2 -1 0 1 2 3 4 5 X
m

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

You have z baseball cards. christopher has 12 fewer baseball cards than you do. which expression correctly shows how many baseball cards christopher has?

The sales tax for an item was $8.40 and it cost $420 before tax. find the sales tax rate. write your answer as a percentage.