3 years ago

68,435,190 in word form

Mathematics

2 answers:

Nat2105 [25]3 years ago

8 0

sixty-eight million four hundred thirty five thousand 1 hundred ninety

Orlov [11]3 years ago

5 0

sixty eight million, four hundred thirty five thousand, one hundred and nienty

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Solve x and y 3x-4y=18,9x-2y=12

Rudiy27

Answer:

3x-4y=18

1xy=18

xy=18 ans

4 0

3 years ago

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A small business assumes that the demand function for one of its new products can be modeled by p = Cekx. When p = $40, x = 1000

Maru [420]

Answer:

C= 82.1116

k=-0.0007192

Step-by-step explanation:

$p=Ce^{kx}\\40=Ce^{k1000}\\30=Ce^{k1400}\\$

Applying logarithmic properties yields in the following linear system:

$ln(40) = ln(C) + 1000k\\ln(30) = ln(C) + 1400k$

Solving for k:

$ln(40) = ln(C) + 1000k\\ln(30) = ln(C) + 1400k\\400 k = ln(30)-ln(40)\\k=-0.0007192$

Solving for C:

$40=Ce^{-0.0007192*1000}\\C= \frac{40}{e^{-0.0007192*1000}}\\C=82.1116$

C= 82.1116

k=-0.0007192

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3 years ago

Help me find y please

Andreyy89

Answer:

103

Step-by-step explanation:

it has to add up to 180 so

180-77=103

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3 years ago

Calculate the mean of: 4.6, 3, 8.1, 9, 12, 3, 9, 3.5, 7, 3.<br> 6.22<br> 5.8<br> 9<br> 3

harkovskaia [24]

Answer:

7.3

Step-by-step explanation:

The mean of 4.6, 3, 8.1, 9, 12, 3, 9, 3.5, 7, 3. 6, 22 , 5.8 , 9 , 3 is 7.3

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3 years ago

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A certain statistic bˆ is being used to estimate a population parameter B. The expected value of bˆ is equal to B. What property

insens350 [35]

Answer:

Unbiased

Step-by-step explanation:

If b^ is equal to B this means that it is an unbiased estimator. When there is an absence of bias, we have an unbiased estimator. As an unbiased estimator it gives accurate information most of the time. The result it gives is not over estimated and also it is not underestimated.

Expected value = true value

Parameter estimates are correct on average

Thank you

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3 years ago