Select all of the following that are quadratic equations.

3 x^2 + 5 x - 7 = 0

x^3 - 2 x^2 + 1 = 0

2 x - 1 = 0

5 x^2 + 15 x = 0

6 x - 1 = 4 x + 7

x^2 - 4 x = 4 x + 7

Anonymous 4 years ago The sides of a triangle measure 14.9 centimeters, 23.8 centimeters, and 36.9 centimeters. Find the measure of the angle with the least measure.

A candy factory can make 1,200 individually wrapped pieces of chocolate candy in one minute, 35% of which have caramel? about how many pieces have caramel?

Factor the following: 4x^2 + 18x - 10 so far I factored out 2: 2 (x^2 + 9x - 5) what's the next step?

A local RadioShack store wants to buy a new line of plasma TVs. Manufacturer A offers chain discounts of 18/12, and Manufacturer B offers terms of 17/13. Which single equivalent discount rate is the best deal?

A fishing lodge wants to build a new boat ramp. The slope of the ramp must be 8° to the horizontal. The total height of the bank is 2.8 m. How long must the sloping section of the ramp be? Give your answer to the nearest centimetre.

Jo estimated the quotient of - 41.71 divided by - 6.03 by rounding each to the nearest integer. What is Jo's error?

How many solutions does the equation 4x+3-1=2 (2x+2) - 2x have explain your reasoning

1+4x=29 what does x = 1+4x=29 what does x =

Lamar bought 20 pounds of dog food for $4.99 for his dog, Buster. The next day, the shop down the street offered 50 pounds of the same brand of dog food for $12.50. Did Lamar get a better deal? ... ?

Simplify the sum 4/m+9 + 5/m2 - 81