Step-by-step explanation:
A) 45
B) 6
C) 6.7082039326
-4r-11=4r+21
Move 4r to the other side
Sign changes from +4r to -4r
-4r-4r-11=4r-4r+21
-4r-4r-11=21
-8r-11=21
Move -11 to the other side
Sign changes from -11 to +11
-8r-11+11=21+11
-8r=21+11
-8r=32
Divide both sides by -8
-8r/-8=32/-8
Answer: r=-4
Answer:
6
come to z o o m
z o o m id 85675494491 pwd eu3nFG
The answer is -2.76.
Hope I Helped (=^-^=)
Answer:
12,7
Step-by-step explanation:
use pathogaras theorem
c^2=a^2+b^2
