Do parallel lines cross

Prove that the sum of the length of the diagonals of a quadrilateral is less than the perimeter, but greater than the half of the perimeter of this quadrilateral.

What is the absolute value of - 37

Lie is solving the quadratic equation by completing the square. 3x^2+18x-8=0 3x^2+18x=8 What should Lie do next? A. write the polynomial as a binomial squared B. factor 3 out of the variable terms C. isolate the variable x D.

Ties at a department store cost $14 each. Which equation shows the proportional relationship of the total cost, c, in dollars for a number of ties, t?

On a recent road trip, it took Kelly 4 hours and 45 minutes to travel 266 miles. What was Kelly's average speed for the road trip? A) 5miles per hour B) 1264miles per hour C) 60miles per hour D) 56miles per hour

The low temperatures for the week in Carrollton, in degrees Fahrenheit (°F), were 17, 41, 11, 14, 11, 13, and 15. What is the mean of the temperatures without the outlier?

What is 6 more per week than Theodore studies

Suppose there are 5 students in a room. The mean age is 20.2 20.2 years, and the median age is 19 19. If the youngest person leaves and is not replaced by another person, what happens to the mean and the median?

Write (7,3) and (4,0) in slope intercept form

Molly uses 192 beads to make a bracelet and the necklace it takes five times as many beads to make a necklace than it does to make a bracelet how many beads are used to make a necklace