You have 110 inches of yellow ribbon. The diameter of the old oak tree is 38 inches. Do you have enough yellow ribbon to wrap around the old oak tree? Explain.

no

Step-by-step explanation:

You need 119 inches of yellow ribbon to wrap around the old oak tree. First, you need to find the circumfrence of the circle which is 2πr. 2 x pi equals about 6.28 multiply that by 19 which is the radius (38/2) of the oak tree, It will give you an answer of 119.32, which is greater than 110.

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

99

step-by-step explanation: