Conider the sequence following a minus 8 pattern: 9, 1, −7, −15, ….a. Write an explicit formula for the sequence.

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times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15