Answer:
Option d) is correct
That is x equals plus or minus start fraction 11 over two end fraction
Step-by-step explanation:
Given quadratic equation is 
To write the given quadratic equation by using a difference-of-squares factoring method:
The above equation can be written as
The above equation is in the form of difference-of-squares
Therefore the given quadratic equation can be written in the form of difference-of-squares
by factoring method is
(which is in the form 
)
2x+11=0 or 2x-11=0
or 
or 
Therefore option d) is correct
That is x equals plus or minus start fraction 11 over two end fraction
Answer:
x
Step-by-step explanation:
Answer: m = -2
Step-by-step explanation:
8(3m+5)=2m-4
24m + 40 = 2m - 4
24m - 2m = -40 - 4
22m = -44
m = - 44/ 22
m = -2
Answer:
6/-5
Step-by-step explanation:
label the points, x1 y1, x2 y2, and subtract y2-y1, over x2-x1
7-1=6, -7-(-2)= -5
So, 6/-5, or, six over negative five
9514 1404 393
Answer:
7 1/3 hours
Step-by-step explanation:
We are to assume that the total number of heater-hours required is a constant. That is, the time is inversely proportional to the number of heaters.
If the number of heaters goes up by a factor of 6/4 = 3/2, then the number of hours will go down by the inverse factor: 2/3.
With 6 heaters instead of 4, the time required is (2/3)(11 hours) = 7 1/3 hours.
