Answer:
Step-by-step explanation:
The total surface area of a cone is given by :
Put r = 2r and l = 2l in the above formula
Hence, the total surface area of the cone is .
Answer:
what functions?
Step-by-step explanation:
Multiplying a negative number and another negative number makes the product positive.
So (-2.1)*(-1.4) = 2.94
80,000 per year....there are 12 months in a year
80,000 / 12 = 6666.67 per month
8 . You round 31.9 to 32 then divide it by 4 which gives you 8