A coelom is _____.
an arrangement of organs
a cavity filled with fluid
layers of tissue
an inner lining of tissue

The coelom a cavity filled with fluid.

s

daddy_ryan|Points 999|

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Asked 4/10/2014 10:11:33 PM

Updated 4/10/2014 10:29:20 PM

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The dog walked crookedly.
The sentence above is a _____.
simple sentence
compound sentence
complex sentence
compound-complex sentence **Weegy:** The dog walked crookedly. The sentence above is a simple sentence.
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Expert Answered

Updated 4/9/2014 11:56:19 PM

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Solve the system y = -x + 7 and y = -0.5(x - 3)2 + 8

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Updated 4/14/2014 2:13:18 PM

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y = -x + 7

y = -0.5(x - 3)^2 + 8

replace y in the second equation:

-x + 7 = -0.5(x - 3)^2 + 8

-x + 7 = -0.5(x^2 - 6x + 9) + 8

-x + 7 = -0.5x^2 + 3x - 4.5 + 8

0.5x^2 - x - 3x + 7 + 4.5 - 8 = 0

0.5x^2 - 4x + 3.5 = 0

multiple 2 on both sides:

x^2 - 8x + 7 = 0

(x - 1)(x - 7) = 0

x = 1 or x = 7

y = -1 + 7 = 6 or y = -7 + 7 = 0

The solution for the system of equations y = -x + 7 and y = -0.5(x - 3)^2 + 8 is (1, 6), (7, 0)

y = -0.5(x - 3)^2 + 8

replace y in the second equation:

-x + 7 = -0.5(x - 3)^2 + 8

-x + 7 = -0.5(x^2 - 6x + 9) + 8

-x + 7 = -0.5x^2 + 3x - 4.5 + 8

0.5x^2 - x - 3x + 7 + 4.5 - 8 = 0

0.5x^2 - 4x + 3.5 = 0

multiple 2 on both sides:

x^2 - 8x + 7 = 0

(x - 1)(x - 7) = 0

x = 1 or x = 7

y = -1 + 7 = 6 or y = -7 + 7 = 0

The solution for the system of equations y = -x + 7 and y = -0.5(x - 3)^2 + 8 is (1, 6), (7, 0)

Added 4/13/2014 7:33:01 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [4/13/2014 7:38:27 PM]

y = -x + 7 and y = -0.5(x - 3)2 + 8

Use equation 1 minus equation 2 we get

-x+7+0.5(x-3)^2-8=0

=> -x+7 +0.5(x^2 -6x+9) -8=0

=> -x -1 + 1/2x^2 -3x + 9/2=0

=> 1/2x^2 -4x+ 7/2=0

=> x=7 or x= 1

At x=7 we have y=-7+7 =0

At x=1 we have y=-1+7=6

The answer are ( 7,0) and (1,6)

Use equation 1 minus equation 2 we get

-x+7+0.5(x-3)^2-8=0

=> -x+7 +0.5(x^2 -6x+9) -8=0

=> -x -1 + 1/2x^2 -3x + 9/2=0

=> 1/2x^2 -4x+ 7/2=0

=> x=7 or x= 1

At x=7 we have y=-7+7 =0

At x=1 we have y=-1+7=6

The answer are ( 7,0) and (1,6)

Added 4/14/2014 2:04:32 PM

This answer has been flagged as incorrect.

Rated good by alonedark2, Flagged by andrewpallarca [4/14/2014 2:12:12 PM]

alonedark2, please go to unanswered archives to find questions that are not answered yet, or find any questions that has wrong answers to correct.

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Added 4/14/2014 2:13:18 PM

Which of the following equations is the result of completing the square on x 2 - 6x - 9 = 0?
(x - 3) 2 = 0
(x - 3) 2 = 9
(x - 3) 2 = 18 **Weegy:** 3-3 = 0 (More)

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Updated 4/3/2014 9:03:10 PM

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Almost all animals except _____ have either radial or bilateral symmetry.
sponges
tunicates
clams
insects **Weegy:** Almost all animals except sponges have either radial or bilateral symmetry. (More)

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Updated 4/10/2014 10:24:29 PM

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