Answer:
im pretty sure it is 113.
Step-by-step explanation:
Answer:
Step-by-step explanation:
geometric progresion formula:

Answer:
29x-15
Step-by-step explanation:
fifteenth term=x-1+14(2x-1)
=x-1+28x-14
=29x-15
Answer:
c
Step-by-step explanation:
because it has 3 different parts that cannot be combined
Answer:
101.07ft^2
Step-by-step explanation:
Given data
radius= 5ft
h= 9ft
When the radius and height are both multiplied by 1/2
radius= 5/2ft = 2.5ft
height= 9/2 ft= 4.5ft
The expression for the surface area of the cone is
A=πr(r+√h^2+r^2)
Substiute
A= 3.142*2.5(2.5√4.5^2+2.5^2)
A= 7.855(2.5√20.25+6.25)
A= 7.855(2.5√26.5)
A= 7.855(2.5*5.147)
A=101.07 ft^2
Hence the surface area is 101.07ft^2