Question and answer
Almost all animals except _____ have either radial or bilateral symmetry. sponges tunicates clams insects
Almost all animals except sponges have either radial or bilateral symmetry.
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flamesrb|Points 25|
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Asked 4/10/2014 10:09:39 PM
Updated 4/10/2014 10:24:29 PM
0 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by jeifunk [4/10/2014 10:24:28 PM], Confirmed by jeifunk [4/10/2014 10:24:29 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. (More)
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Expert Answered
Updated 4/9/2014 11:56:19 PM
0 Answers/Comments
Solve the system y = -x + 7 and y = -0.5(x - 3)2 + 8
Question
Updated 4/14/2014 2:13:18 PM
4 Answers/Comments
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)
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)
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.

Duplicate answers are not allowed.
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)
Question
Updated 4/3/2014 9:03:10 PM
1 Answer/Comment
The following equation that is the result of completing the square on x^2 - 6x - 9 = 0 is: (x - 3)^2 = 18
x^2 - 6x - 9 = 0
x^2 - 6x = 9
x^2 - 6x + 9 = 9 + 9
(x - 3)^2 = 18
Added 4/3/2014 9:03:07 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/3/2014 9:03:41 PM]
A coelom is _____. an arrangement of organs a cavity filled with fluid layers of tissue an inner lining of tissue
Weegy: The coelom a cavity filled with fluid. (More)
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Updated 4/10/2014 10:29:20 PM
0 Answers/Comments
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