Answer:

Step-by-step explanation:
Tip: When
,
is also true.
| <em>Original equation</em>
| <em>Use tip</em>
Step-by-step explanation:
b^2=4ac
b= -26, a=1, c=?
-26^2=4*1*c
676=4c
c=676/4
c=169
Answer:
Width = 4.8 inches
Step-by-step explanation:
The perimeter of a rectangle is given by the formula:

Where
P is perimeter
l is length
w is width
Given length = 3.6 and perimeter = 16.8, we plug them in into the formula and figure out the width, w. Process shown below:

Hence, the width is 4.8 inches
Answer:
an unknown point? like 0,7 or 0,5 or 0,1 or 0,0 or 0,anything?
Step-by-step explanation: