Determine the number of solutions for each quadratic equation

1. x2 - 3x + 4 = 0

2. 2x2 + 4x - 5 = 0

3. x2 + 8x + 16 = 0

A cylindrical water tank has a radius of 6 feet and a height of 20 feet. A larger tank with the same radius has a volume that is 2 times the volume of the smaller tank. What is the height of the larger tank?

Lurinda ordered some boxes of greeting cards online the cost of the cards is $6.50n+$3where n is the number of boxes ordered and $3 is the shipping and handling charge how much will Lurinda pay if she orders 8 boxes of cards

What are the solutions of 12 - x2 = 0? A. x = and x = B. x = and x = C. x = and x = D. x = 6 and x = - 6

There are 3 red, 1 blue and 2 yellow marbles in a bag. Once a marble is selected it is not replaced. Find Plred then yellow). a) 5/13 b) 1/7 c) 6/13 d) 5/7

Mya says when 10 is added to a number, the hundreds digit stays the same. Is Mya's statement always true?

In a direct variation function, k corresponds to the? of the line.

Parallel to line with equation y = 15 - 2x and passing through (3,0)

3x+7y=1 2x+4y=0 and (2,3)

A small city park consists of a rectangular lawn that is 30 and 1/2 meters long and 20 meters wide. What is the area of the lawn?

A spinner has 6 equal sections : purple, yellow, blue, green, orange, and red. What is the probability of landing on a section that is NOT orange (in fraction form)