jmoneyhotdog
jmoneyhotdog jmoneyhotdog
  • 02-09-2016
  • Mathematics
contestada

I need help on number 12

I need help on number 12 class=

Respuesta :

Jakcie
Jakcie Jakcie
  • 02-09-2016
First set up the equation, 82=(x)(x+7).
Then simply it 82= x^2 + 7x. --> x^2 + 7x - 82
use the quadratic formula. 

you should get 6.21 or -13.21.
Since length can't be negative, the answer should be 6.21feet.
Answer Link

Otras preguntas

Chinese settlement was restricted to the west by which natural barrier A.The Pacific Ocean B.the Gobi desert
Use the vertical line test to determine whether the relation graphed below is a function
According to Craik and Lockhart (1972), the three levels of processing are __________, _________, and _________.
Choose all the answers that apply. Oxygen is _____. transported by blood picked up in the alveoli released into the air by the lungs pumped to cells by ventri
the material that is most difficult to recycle is
To make one and a half dozen muffins a recipe uses 3 1/2 cups of flour. How many cups of flour are needed for every dozen muffins made
what is a presidential republic government?
Functional conflict is typically characterized by​ _____.
the two strands are held tightly together by
What is the bottom layer of the atmosphere