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kolezko [41]
3 years ago
7

( 3x + 5 ) ki power 2 expend it​

Mathematics
1 answer:
Pepsi [2]3 years ago
4 0

This question is soooo easy

Step-by-step explanation:

(3x)^2+(5)^2+2.3x.5

9x^2+25+30x

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2 years ago
If a number a is chosen at random from the set
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D. 3/19

Step-by-step explanation:

12/1 = 12

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There are also only 19 numbers because they need to be less than 20 like the question indicated. Therefore, the answer is D.

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2 years ago
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ryzh [129]

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2

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6 0
3 years ago
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A chemist is using 373 millimeters of a solution of acid and water.if 19.9 percent of the solution is acid how many millimeters
vovikov84 [41]

There are 74.227 milliliters of acid in the solution.

Explanation:

  • The total amount of liquid is 373 milliliters. This is both the acid and water combined i.e amount of liquid + amount of acid = 373 milliliters
  • If 19.9% of this is acid it means 19.9% of the the entire 373 milliliters is acid. So we calculate how much 19.9% of 373 milliliters is.
  • 19.9% of 373 milliliters = 0.199 × 373 = 74.227 milliliters. So 74.227 milliliters of the entire solution is acid.

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3 years ago
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