Select all of the following that are quadratic equations.

7x2 + 14x = 0

x3 - 3x2 + 1 = 0

5x - 7 = 0

x2 + 3x - 5 = 0

x - 5 = 9x + 7

x2 - x = 3x + 7

The ___ of a function consists of the set of all output values.

Karolyn bought a water softener from a rental center for $1,850. She makes 16 monthly payments of $162.75 with her credit card. The rental center charges a $2.25 fee for every late payment made with a credit card.

A hot air ballon ascended at the rate of 400 ft per hour for 3 hours and 15 min. What was the total distance that the ballon ascended?

Monty is making punch in a 7/8 gallon container. How many cups of punch can make? 1 cup = 1/16 gallon A 2 cups. B 7 cups. C 14 cups. D 16 cups.

2. Another wooden plank is leaning against an outside wall of a building. The bottom of the plank is 9 ft from the wall. The length of the plank is 41 ft. Find each of the following values, and show all your work. (a) Find the value of x.

The sum of the first natural number and 0 is 1, the sum of the first two natural numbers and 0 is 3, the sum of the first three natural numbers and 0 is 6, and the sum of the first four natural numbers and 0 is 10.

Sin theta = cos theta find value of sec theta

If the sum of a number and four is doubled, the result is six less than the number. Find the number

Bret has a fish tank that holds 320 fluid ounces of water. On average, the water evaporates from the tank at a rate of 3.84 ounces per day. Bret went on vacation for 2 weeks, and asked a friend to feed his fish.

Nine less than the product of ten and a number d is equal to eleven.