Answer:
Step-by-step explanation:
we know that
The surface area of the cone is equal to
where
r is the radius
l is the slant height
we have
----> the radius is half the diameter
substitute the values in the formula
Volume of hemisphere = 2πr³/3
Volume of cone = πr²h/3
Where r = 2 and h = 9
Volume = volume of hemisphere + volume of cone
Volume = 2π(2)³/3 + π(2)²(9)/3
Volume = 16π/3 + 36π/3
Volume = 52π/3
Answer:
Ans: greater than 40 mileage Company A will charge less than Company B
Step-by-step explanation:
as company A charges a fix amount $93 for any distance and company B charges variable amount starting from $65.there will be a certain mileage after that the amount charged by company B should be greater than company A.
let for greater than m mileage company A will
charge less than company B.
charge for company A for m mileage= $93
charge for company B for m mileage= $65 + $0.70*m
so,
93 ≤ 65+0.70*m
93-65 ≤ 65+0.70*m -65
28 ≤ 0.70*m
28*10 ≤ 7 *m
280 ≤ 7m
280/7 ≤ 7m/7
40 ≤ m
Answer:
112
Step-by-step explanation:
The volume is 448
You are asked to dilate it to a scale factor of 1/4
All you are doing is multiplying: 448/1 × 1/4