What is the value of b^2-4ac for the following equation?

2x^2 - 2x - 1 = 0

a.-4

b. 0

c. 12

Susan drove 571 miles and the trip took 14 hours of driving time what was her average speed for the hours that she drove

In winter, the price of apples suddenly went up by$0.75 per pound. Sam bought 3 pounds of apples at the new price for a total of $5.88. Write an equation to determine the original price per pound (p) and then find the original price per pound.

What is the relationship the values of given digits like 44,000

2x squared + (4x-6x squared) + 9 - (6x+3)

How many square feet are there in 3 1/2 Acres

Find the prime factorization of 50 using exponents

Georgetown Theater issued 5,200 tickets last weekend. This weekend, the theater issued 74% fewer tickets. How many tickets to comedies did the theater issue this weekend? 1,343 tickets 1,352 tickets 1,342 tickets 1,354 tickets

A person in a balloon which is 2,000 feet above the airport finds that the angle of depression to a ship out at sea is 21°. Find the horizontal distance between the balloon and the ship.

Information about the five planets

A rectangular prism has a volume of 100 cubic meters. One of the dimensions is 5 meters. Which pair of measurements could be the other two dimensions of the prism? 1. length = 5 meters, width = 4 meters 2. length = 5 meters, width = 5 meters 3.