Answer:
6.28 or 157/25
Step-by-step explanation:
Firstly, you find the formula for the circumference of a circle which is C= PI ( diameter)
So since the radius is 1 you multiply it by 2 and get 2 so then you multiply 2 by 3.14 (pi) and get 6.28
I hope this helped!!!

Answer:
k= 9
Step-by-step explanation:
hope this helps you
Answer:
1) 243 in.²
Step-by-step explanation:
1)
A = 18 in. * 18 in. - 9 in. * 9 in. = 243 in.²
Try to multiplty the rote number which would be 60+40-7=93
Answer:
C
Step-by-step explanation:
Given
- x ≥ - 3
Multiply both sides by - 1 reversing the inequality symbol as a consequence of multiplying by a negative quantity, that is
x ≤ 3 → C