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Ivahew [28]
3 years ago
9

How many elements must a set have if the number of proper subsets of the set is one half

Mathematics
1 answer:
Svet_ta [14]3 years ago
5 0
2^n - 1 = 1/2(2^n)
2^1 - 1 = 2^1/2
2 - 1 = 2/2
1 = 1

Theefore, the set must have one element
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What r the answers to these questions(picture above)?PLEASE HELP
kirill [66]

Problem 3

The constant term is 290. This is the term that stays the same no matter what the value of 'a' happens to be. Contrast this with the variable term 2.50a which changes if 'a' changes (hence the name "variable" for "vary" or "change")

If Mike sold 0 accessories, then a = 0 and the expression would be

2.50*a + 290 = 2.50*0 + 290 = 290

Selling 0 accessories leads to $290. This is the amount he is guaranteed with the 2.50a portion being additional money to motivate him to sell more.

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Answer: Choice (3) 290, amount he is guaranteed

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Problem 4

Plug y = 0 into the equation. Solve for x

9x - 14y = -3

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6 0
3 years ago
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topjm [15]
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8 0
3 years ago
$13,000 was borrowed from two sources, one that charges 15% simple interest and the other that charges 10% simple interest. If t
guajiro [1.7K]

9514 1404 393

Answer:

  • $9,000 at 15%
  • $4,000 at 10%

Step-by-step explanation:

Let x represent the amount borrowed at 15%. Then the amount borrowed at 10% is (13000-x). The interest at the end of the year is ...

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Answer:

7cm

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3 years ago
A ratio is a rate give a example
MaRussiya [10]
If a 12-ounce can of corn costs 69 cents the rate would be 69 cents for 12 ounces.

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