The circumference of a circle measures 15.7 centimeters. What is the measure of its diameter? a. 12 cm c. 5 cm b. 10 cm d. 2.5 cm Please select the best answer from the choices provided

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

1

step-by-step explanation:

it's the only multiple of both and the least

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step-by-step explanation: vsfdvsfvd