A motor racing circuit consists of two parallel straight sections, each of length 1.5 km
a semicircle of diameter 1.2 km
three equal, smaller semicircles.
The length of a motor race must be greater
than 490 km
What is the lowest number of full laps needed
at this circuit?
You must show your working.

b

step-by-step explanation:

step- i d k and i d c : )

you: : 0

bye

a

step-by-step explanation:

(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