20) A, B, C
|A₂ 2 7 1
B2 2 10 3
C2 1 3 1
The table shows the number of students in a class that received letter grades on 2 recent exams. The first exam is shown across
the top and is summarized as Aų, B1, and C1, and the second exam is in the first column, A2, B2, and C2. Given that a student earns
an A on the first exam, what is the probability the student earns a C on the second exam?
A)
3%
B)
17%
20%
D)
25%

step-by-step explanation:

22 dimes and 9 nickels

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