brooke020500 brooke020500

02-05-2017
Mathematics

contestada

The length of a rectangular field is 20 less than its width. The area of the field is 12,00 square feet. What is the width of the field?

Respuesta :

jwright24 jwright24

02-05-2017

x(x-20)=12000
x^2 - 20x = 12000
x^2 - 20x - 12000 = 0
(x - 120)(x + 100) = 0

x = -100, 120

so the width is 120 ft

Answer Link

Otras preguntas

I have a 5 kg ball accelerating at 2 m/s2. Using the formula for Net Force, what is the force produced bythe ball? (Remember that the unit for force is Newton.)

The sum of the first 10 terms of a linear sequence is 5 and the sum of the next 10 terms is 215. Find the sequence.

Rank the phases of matter from the one with the least kinetic energy to the greatest kinetic energy for the particles in the substance.

Briefly describe the process of protein synthesis and modification in a eukaryotic cell, from the ER to exiting via the plasma membrane. Include information on

Hi i am student of languages and I need know if my answers are correct. Help me please!!!

44. The nervous system is controlled by the A. Nerves B. Spinal cord C. Brain D. Brain stem

How are biomes related to ecosystems?

In which number does the 5 represent a value of 10 times the value represented by 5 in 35,187

Emergency! I don't get this really well. Please help!-(8-2n)=8-2(12-3n)

9. At soccer practice, Joan kicked the ball 22 feet. This was 3 feet shorter than Joe kicked the ball. Write and solve a subtraction equation to find out how fa