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Svetradugi [14.3K]
3 years ago
8

Choose the correct product of (2x + 10)^2

Mathematics
2 answers:
Shalnov [3]3 years ago
6 0
4x to the 2nd power plus 40x plus 100 is your answer 
wlad13 [49]3 years ago
3 0
(2x+10)(2x+10) use FOIL to solve (First, Outer, Inner, Last)
4x^2+20x+20x+100
Combine like terms
4x^2+40x+100
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A single gram of a certain metallic substance has 0.52 g of copper and 0.25 g of zinc the remaining portion of the substance is
andrezito [222]
Ben's estimate gives 7 g of nickel; the actual amount is 8.03 g.

In 1 g of the substance, there is 0.52 g of copper and 0.25 g of zinc; this gives 
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The remaining part of the substance is nickel:
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Using Ben's estimate, 0.2 g of nickel per gram of substance, we have
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The actual amount is 0.23(35) = 8.03 g of nickel in 35 g of the substance.
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Answer:

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Step-by-step explanation:

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klasskru [66]

Answer:

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