Write down in terms of n, an expression for the nth term of the following sequences:
ET
a) 2 5 8 11 14
b) 9 11 13 15 17

In bold below.

Step-by-step explanation:

a)  Arithmetic sequence with common difference 3 and first term = 2:

nth term =  2 + 3(n - 1)

= 3n -1.

b)  Similar to above with common difference 2 and first term = 9.

nth term = 9 + 2(n - 1)

= 2n + 7.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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