Answer:
x²-8x-1=0
comparing above equation with ax²+bx+c=0
a=1
b=-8
c=-1
x=

=(--8+-√(64-4×1×-1)/2×1
=8+-√(64+4)/2
taking positive
x=(8+√68)/2=2(4+√17)/2=4+√17
taking negative
x=(8-√68)/2=2(4-√17)/2=4-√17
Answer:
all sides are 16 ft
Step-by-step explanation:
If the side length is x, the area is x²=256, hence x = √256 = 16
Answer:
JUST DO 3.142 X 10
ANSWER: 31.42 IN
Step-by-step explanation:
<em><u>Please mark as brainliest</u></em>
Have a great day, be safe and healthy
Thank u
XD
30 millimeters is the difference between the two heights