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

compare finding a ratio equlivant to 12/21 with lower terms and finding a ratio equivalent to 12/21 with greater terms

Emma buys and sells truck parts she bought two tires for $35 each and later sold them for $65 each she bought three rooms for $75 each and later sold them for $136 each she bought five headlights covers for $4 each and later sold them for $15 each

Find the area of a parallelogram bounded by the y-axis, the line x = 3, the line f (x) = 1 + 2x, and the line parallel to f (x) passing through (2, 7

One number is 1/5 of another number. the sum of the two numbers is 1818. find the two numbers.

What is angle DFE? When ce = 84 and bd = 38

Here is a list of what you need to make 20 buns: 180g of butter, 150g of flour, 200g of sugar and 4 eggs. Work out what you need to make 30 buns.

Which of these steps is a step in constructing an inscribed regular hexagon using technology

Alex rides 45 miles in 3 hours write an equation that shows the relationship between the distance and the time that he rides if Alex rides at a constant rate of speed

Big sale 20% off what percent of the regular price is taken off?

Rewrite the equation below in slope-intercept form. 2y-8x=18