Select all of the following that are quadratic functions.

x = 3y2 - 6y + 5

y + 3 = - 2 x 2 + 5

y = 2 x 2 - 8 x + 6

y = - 7 x - 4

y - 3 x = 4 x 3 - x2 + 9

y = 5 x (x + 9) - 8

y - 2 x 2 = 3 x - 2 x 2 + 4

Standard form : three hundred fifty million, six thousand, seven hundred ninety one and eighty three hundreths

The cookie factory has a fixed cost of $300 per month plus $.45 for each cookie sold. Each cookie sells for $.95. How many cookies must be sold during one month for the profit to be at least $100?

What is the answer to 3x+4y=12

33 students are going on a field trip4 students can ride in each carHow many cars will they need for the field trip? Possible Answers: 12 8 9 10 11

Sam plans to walk his dog a distance of 1 mile. He walks3/8 and stops to get a bottle of water. Then he walks 1/8of a mile and stops to say hello to a friend. How far does Sam still hava to walk his dog?

Suppose that a single card is selected from a standard 52-card deck. what is the probability that the card drawn is a club ? now suppose that a single card is drawn from a standard 52-card deck, but it is told that the card is black.

How do you write 70% as a fraction or mixed number in simplest form?

All are Algebra 1 questions. What is x? 1. 7 (x-5) - 2 = - 100 2. 2x+6 (5x-5) = 130 3.-5x+3 (-4x-11) = 137 4.2 (x+9) - 15 = - 3 5. 5-3 (x-7) = 32 6.3-3 (x-5) = 60 7.2x-2 (-3x+3) = 58 8. 5x-3 (-6x+5) = - 130

On a scale drawing, 1/4 inch = 2 miles. On the drawing, how many miles are represented by a line that is 3 1/2 inches long? A 7 miles B 12 miles C 14 miles D 28 miles

If y varies inversely as x and y = 8 when x = 9, find x when y = 12.