Select all of the following that are quadratic equations.

3x2 + 5x - 7 = 0

x3 - 2x2 + 1 = 0

2x - 1 = 0

5x2 + 15x = 0

6x - 1 = 4x + 7

x2 - 4x = 4x + 7

What's 6.82 divided by 3.1

What's the answer to 12X = - 36

What percent was the server's tip if the customer left $1.75 for a $12.50 meal.

Three numbers between 0.33 and 0.34

In one day Annie traveled 5 times the sum of the number of hours brian traveled an 2. together they traveled 20 hours. find the number of hours each person traveled

At 7:30 a. m., a bus left Town P for Town Q at a speed of 60 kilometers per hour. 15 minutes later, a car left Town Q and headed for Town P. The car reached Town P at 10:45 a. m. The bus reached Town Q at noon.

The fundamental theorem of Arithmetic The system (E) : The set of all even positive integers The system (T) : all positive integers congruent to 1 mod 3 1. List the primes in E between 1 and 20. 2. List the primes in E between 21 and 40. 3.

Suppose you are getting new inground pool at your house. The pool is going to be a rectangle that is 30 feet by 15 feet. The outside border of the deck around the pool will also be a rectangle, which is 44 feet by 28 feet.

There are 12 team members. They each ate 3 slices of pizza. Each pizza was cut into 8 slices. What fraction of the pizza did the team eat altogether?

Solve for v 12v = 18+6v