Answer:
25 cm
Step-by-step explanation:
where r is the radius of the circle
Plug in the given radius (4 cm)

Therefore, the circumference of the opening is approximately 25 cm.
I hope this helps!
Answer:
C. 2, 1
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Using the definition
n
= 
where n! = n(n - 1)(n - 2)..... 3 × 2 × 1
Then
7
=
=
← cancel out the multiples 6 ×5 × 4 × 3 × 2 × 1 , then
7
= 7
Answer:
x <-10
Step-by-step explanation:
-4(-4+x)>56
Divide each side by -4, remembering to flip the inequality
-4/-4(-4+x)<56/-4
-4+x < -14
Add 4 to each side
-4+4+x < -14+4
x <-10