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:
EFG = 90 degrees
GDH = 45 degrees
FEG = 45 degrees
DHG = 90 degrees
Step-by-step explanation:
-6.5 which in your answer choices is a
Answer:
2,5
Step-by-step explanation:
2 to the right and 5 up
Tile 1 goes to graph D
Tile 2 goes to graph B
Tile 3 goes to graph A
Tile 4 goes to graph C
Desmos graphing calculator at desmos.com/calculator is a great tool.