Answer:
2.45 × 
Step-by-step explanation:
using the rules of exponents
•
= 
•
= 
evaluating the numerator
(3.8 ×
)² = 3.8² ×
= 14.44 × 
R = 
=
× 
= 2.45 ×
← to 2 dec. places
Answer:
A
Step-by-step explanation:
A) r = 8
B) r = 4
C) r =
~ 3.09
D) r =
Circle A has the largest radius, and thus is the largest circle
It is a semicircle so you'd use this formula for the area:
πr² / 2
Then substitute 2 into r and solve (2 because it's the radius, 4 is the diameter)
You would use this formula for the perimeter:
(πd / 2) + d
or
πr + 2r
Then substitute 4 into d / 2 into r and solve.
Hope I helped :)
$650
Step-by-step explanation:
Revenue(9,950)- Fixed(9,000)- expenses(300) = 650