A circular swimming pool has a radius of 20 feet. A fence is going to be built so that there is a 4-foot space around the entire pool. What is the length of the fence? Sunitha solved the problem as shown.

A circle with radius of 20 feet. A larger circle is 4 feet larger than the smaller circle. Radius = 24 feet. Circumference = 24 pi.

What was her error?
A) She should have used 12 in the formula, not 24.
B) She forgot to multiply the radius by 2 in the formula.
C) She did not add the additional fence length to the pool’s radius.
D) She should have used 4 ft in the formula.

she forgot to multiply the radius by 2 in the formula .

Step-by-step explanation:

B

Step-by-step explanation:

i got it correct on edge :)

(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

there should be an link icon on the bottom of the text box you get. it looks like a paperclip!