Answer:
Circle's area = 28,26 km
Formula = π r²
Step-by-step explanation:

-4K = 1.2 + 6
-4K = 7.2
-4K/-4 = 7.2/-4
Therefore k = -1.8
Answer:
1/1
Step-by-step explanation:
22/22 =1
Answer:
f(-2) = 1.
Step-by-step explanation:
If we are solving for f(-2), we will simply need to substitute in '-2' for 'x'. This gives us:
f(-2) = -2 + 3
f(-2) = 1.