Answer:
A = 81π cm²
Step-by-step explanation:
The area (A) of the cross section is calculated as
A = πr² ( r is the radius )
Find r by using the given circumference.
Given the circumference is 18π and circumference (C) is
C = 2πr = 18π ( divide both sides by 2π )
r = 9, thus
A = π × 9² = 81π cm²
Answer:
lower half
Step-by-step explanation:
The first quartile in this is 230
Depends on what 28 cm is. The radius? The diameter?
Assuming it's the radius, using the formula for the volume of a sphere (
), we get about 91,952 cubic centimeters, which is closest to 92,000.
WRITE EQUATIONS....
f = k÷ g (inversely proportional....)
∴ if f= 40 and g= 5 K= (40×5) =200
now that u have k... and given g = 10...u can substitute to find f
f= 200÷10 =20
so f = 20
