Verify that parallelogram ABCD with vertices A (-5, -1), B (−9, 6), C(-1, 5), D (3, -2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals. Enter your answer and show all the steps that you use to solve this problem in the space provided.

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257

For what values of x is x2 + 2x = 24 true?