Answers: 1

Answer from: snow01

This expression can be factored with Difference of Two Cubes Formula:

x^3 – y^3 = (x – y)(x^2 + xy + y^2), where x = a^3 and y = 4b^4. You'll get a^3 and 4b^4 by cube rooting each term.

x^3 – y^3 = (x – y)(x^2 + xy + y^2)

a^9 - 64b^12 = (a^3 - 4b^4) [ (a^3)^2 + (a^3 )(4b^4) + (4b^4)^2 ]

= (a^3 - 4b^4)(a^6 + 4a^3 4b^4 + 16b^8)

Answer from: Quest

answer:

the 50th sequence is 197

step-by-step explanation:

it is a arithmetic sequence:

is the formula of a arithmetic sequence: = a1 + (n-1)since: a1 = 1 ; d = 4

a50 = 1+(50-1)(4)

= 197

so the answer is 197

Answer from: Quest

True, since radii/radius are from the center to any point on the circle

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