Write the explicit formula for the sequence. Then find the fifth term in the sequence. a1= 3, r=-3

a) Explicit Formula : aₙ = 3. (-3)ⁿ⁻¹

b) Fifth term : a₅ = 243

Step-by-step explanation:

This sequence above is the Geometric sequence. The Geometric sequence is calculated using the formula

aₙ= a1.rⁿ⁻¹

where a1 = first term

r = common ratio

n = number of terms

From the above question, we are given

a1= 3, r=-3 and asked to find the explicit formula.

The explicit formula using the geometric sequence formula =

aₙ = 3. (-3)ⁿ⁻¹

b) The fifth term in the sequence is calculated as

aₙ = 3. (-3)ⁿ⁻¹

Where n = 5

a₅ = 3.(-3)⁵⁻¹

a₅ = 3.(-3)⁴

a₅= 243

it could be 1,3 and more others to create a cylinder.

step-by-step explanation:

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart