The surface area of a cone HELP with radius r units and slant height s units is shown below: Surface area = 3.14(rs +12)
Part A: If r = 2 units and s = 3 units, write an expression that can be used to calculate the surface area of the cone.
Part B: What is the surface area of the cone? Show your work. (6 points)

it would rotate about 180 degrees.

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week

333.74 ! should be your answer for this question