2 years ago

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Mathematics

1 answer:

Montano1993 [528]2 years ago

3 0

15.8 percent is your answer

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Oksana_A [137]

Answer:

Step-by-step explanation:

because there are numbers involved

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2 years ago

Solve for x <br><br> log(7x+1) = log(x-2) + 1

myrzilka [38]

Log(7x+1) - log(x-2) =1

log[(7x+1) / (x-2)] =1 or log[(7x+1) / (x-2)] =log10 (log10=1)

it means (7x+1) / (x-2) =10

Solving ===> x=7

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3 years ago

Water flows into a conical container (radius:12cm, height:18cm) as shown below at the rate of 2cm^3 s^-1

OLEGan [10]

Answer:

where is the as shown below?

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2 years ago

We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of

sergiy2304 [10]

Answer:

Margin of error = 0.773

Step-by-step explanation:

We are given the following information in the question.

Sample size, n = 20

Sample mean = 8

Sample standard deviation = 2

90% Confidence interval

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 19 and}~\alpha_{0.10} = \pm 1.729$

Margin of error:

$t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$1.729(\frac{2}{\sqrt{20}} ) = 0.773$

7 0

3 years ago

HEO asap 8th grade math

Ierofanga [76]

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5 0

2 years ago

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