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How much of Earth's atmosphere is made up of nitrogen and oxygen? A. Close to 99 percent B. Between 25 and 75 percent C. 50 percent D. Less than 1 percent
Close to 99 Percent of Earth's atmosphere is made up of nitrogen and oxygen. The Earth's atmosphere has about 78% nitrogen and 21% oxygen.
Expert answered|Score 1|blinkyfrommarz|Points 0|
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Asked 1/23/2018 12:57:06 PM
Updated 1/23/2018 1:14:33 PM
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Confirmed by Janet17 [1/23/2018 1:14:33 PM]
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Multiply (2m + 3)(m2 – 2m + 1). A. 2m3 – m2 – 4m + 3 B. 2m3 – 7m2 – 4m + 2 C. 2m3 – m2 – 10m + 3 D. 2m3 – m2 – 8m + 3
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Updated 1/19/2018 7:12:36 PM
1 Answer/Comment
(2m + 3)(m^2 – 2m + 1)
= 2m^3 - 4m^2 + 2m + 3m^2 - 6m + 3
= 2m^3 - m^2 - 4m + 3
Added 1/19/2018 7:12:36 PM
This answer has been confirmed as correct and helpful.
Solve the following system by any method. –8x – 8y = 0 –8x + 2y = –20 A. (0, –2) B. (–2, 2) C. (2, –2) D. (2, 2)
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Updated 1/19/2018 7:35:04 PM
1 Answer/Comment
–8x – 8y = 0
–8x + 2y = –20

(–8x + 2y = –20) - (–8x – 8y = 0)
10y = -20
y = -20/10
y = -2

–8x – 8(-2) = 0
-8x + 16 = 0
-8x = -16
x = -16/-8
x = 2

Solution set: (2, -2)
Added 1/19/2018 7:35:04 PM
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What document gave only Parliament the power to tax? A. Westminster Model B. Magna Carta C. Mayflower Compact D. Confirmation of Charters
Weegy: The Magna Carta gave only Parliament the power to tax. (More)
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Updated 1/24/2018 12:28:21 PM
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What was the basic aim in a direct democracy? A. Bill of Rights B. Legislature C. Suffrage D. Majority rule
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Updated 1/24/2018 1:21:51 PM
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Majority rule was the basic aim in a direct democracy.
Added 1/24/2018 1:21:51 PM
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The governmental body responsible for interpreting the Constitution is the A. president. B. House of Representatives. C. Supreme Court. D. Senate.
Weegy: The governmental body responsible for interpreting the Constitution is the Supreme Court. (More)
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Updated 158 days ago|11/13/2018 4:06:24 AM
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