Which of the following angles is not coterminal with the other three?
A. 591°
B. 231°
C. 51°
D. –129°

–129° is not coterminal with the other three.

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Asked 10/2/2012 7:59:28 PM

Updated 3/20/2014 10:24:44 AM

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Simplify the sum. d^2+d-30/d^2+3d-40 + d^2+14d+48/d^2-2d-48 A. 2d62+15d+18/2d^2+d-88 B. d^2+14d+16 / (d+8)(d-8) C. 2d^2+14d+16/(d+8)(d-8) D. 2d^2+15d+18/(d+8)(d-8) **Weegy:** A. 2d62+15d+18/2d^2+d-88 is the answer. (More)

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Asked 10/1/2012 7:43:29 PM

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the sum. d^2+d-30/d^2+3d-40 + d^2+14d+48/d^2-2d-48 A. d^2+14d+16 / (d+8)(d-8) B. 2d^2+14d+16/(d+8)(d-8) C. 2d^2+15d+18/(d+8)(d-8)

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Updated 4/24/2014 12:41:55 AM

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(d^2+d-30)/(d^2+3d-40) + (d^2+14d+48)/(d^2-2d-48)

= (d - 5)(d + 6)/(d + 8)(d - 5) + (d + 6)(d + 8)/(d - 8)(d + 6)

= (d + 6)/(d + 8) + (d + 8)/(d - 8)

= (d + 6)(d - 8)/(d + 8)(d - 8) + (d + 8)(d + 8)/(d - 8)(d + 8)

= (d^2 - 2d - 48)/(d + 8)(d - 8) + (d^2 + 16d + 64)/(d + 8)(d - 8)

= (2d^2 + 14d + 16)/(d + 8)(d - 8)

= (d - 5)(d + 6)/(d + 8)(d - 5) + (d + 6)(d + 8)/(d - 8)(d + 6)

= (d + 6)/(d + 8) + (d + 8)/(d - 8)

= (d + 6)(d - 8)/(d + 8)(d - 8) + (d + 8)(d + 8)/(d - 8)(d + 8)

= (d^2 - 2d - 48)/(d + 8)(d - 8) + (d^2 + 16d + 64)/(d + 8)(d - 8)

= (2d^2 + 14d + 16)/(d + 8)(d - 8)

Added 4/24/2014 12:41:51 AM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [4/24/2014 12:43:37 AM]

Use the Binomial Theorem to expand the binomial. (x + 2y^2)3 A. x3 - 3x^2y2 + 3xy^4 - y^6 B. x3 + 6^x2y2 + 12xy^4 + 8y^6 C. x3 - 6x^2y2 + 12xy^4 - 8y^6 w D. x3 + 3x^2y^2 + 3xy^4 + y6
**Weegy:** C. x3 - 6x^2y2 + 12xy^4 - 8y^6 (More)

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Updated 6/10/2014 11:44:25 PM

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What is the expression in factored form? 16x^2 - 25 A. (4x - 5)2 B. (4x + 5)(-4x - 5) C. (4x + 5)(4x - 5) D. (-4x + 5)(4x - 5)

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Updated 7/30/2014 10:03:25 AM

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16x^2 - 25 = (4x + 5)(4x - 5)

Added 7/30/2014 10:03:25 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [7/30/2014 10:05:16 AM]

Multiply and simplify if possible.v7x(vx-7v7) A. xv7-49vx B.xv7-xv49 C.v7x-49x D. -v42x **Weegy:** the answer is C (More)

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Updated 5/7/2014 9:03:25 PM

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