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TEA [102]
3 years ago
10

The area of the continent of North America is about 9,540,000square miles. Write 9,540,000 in expanded form using exponents to s

how powers of 10
Mathematics
1 answer:
Kobotan [32]3 years ago
8 0
9,000,000+500,000+40,000
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Plzz help due in 2 mins
daser333 [38]

Answer:

19.84

the decimal has to stay in the same place

Step-by-step explanation:

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Nathan usually drinks 32 ounces of water per day. He read that he should drink 56 ounces of water per
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57 percent

Step-by-step explanation:

36 divided by 56 equals .57142 which rounds to 57

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Simplify <br> (^3)x4<br> Easy 30 points
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this the answer to the question I understand

{ (- 3)}^{4} \\  - 3 \times  - 3 \times  - 3 \times  - 3 \\ 9 \times 9 \\ 81

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Please help figure this out with the correct words
mr Goodwill [35]

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pyramids only have one base.

Step-by-step explanation:

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2 years ago
A detective has interviewed four witnesses to a crime. From the stories of the witnesses the detective has concluded
SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Step 1:we should turn the “facts” into logical expressions.

Step 2:Assign variables

Our variables are: b (for butler), c (for cook), g (for gardener), h (for handyman)

Step 3 . Let the value of true indicate that the person is telling the truth. For example, b = T means the butler is telling the truth. Then we can translate the statements as follows:

Check attachment

Step 4

We know all of these must hold. So we really want to know when (b→c)∧¬(c∧g)∧¬(¬g∧¬h)∧(h → ¬c) is true.

Step 5

Behold, another truth table task! If you work out the truth table, you see that this statement is only true when:

Check attachment

Step 6

Therefore we can say the butler and cook are definitely lying, but we can not determine if the gardener or handyman are lying. However, there are four variables in this problem. Instead, we can do this with some straight reasoning. Notice that:

If the butler is telling the truth, then by (a) the cook is telling the truth.

If the cook is telling the truth, then by (b) the gardener is lying.

If the gardener is lying, then by (c) the handyman is telling the truth.

If the handyman is telling the truth, they by (d) the cook is lying.

This leads to a contradiction (the cook can not be both telling the truth and lying)! Therefore the butler and cook must be lying. What about the gardener and the handyman? We don’t have enough information to figure out if they are lying. Since the cook is lying, we can’t use (b) to come to any conclusions about the gardener. Even if we are able to conclude that the gardener is telling the truth, we can’t use (c) to come to any conclusions about the handyman.

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3 years ago
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