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4 years ago

What’s 810 as a fraction

Mathematics

2 answers:

Alona [7]4 years ago

8 0

8100/10 is your answer, you multiply 810/1 by 10 and then you get you answer

LenaWriter [7]4 years ago

7 0

well the answer of this equation of the fraction would be 8100/10 because i did the quick maths

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Find x from this triangle

algol [13]

Hello,

we are going to use the theorem of the bissectrice. (if this word is good in english)

$\dfrac{KL}{LM} =\dfrac{KN}{NM} \\\\\dfrac{8}{x} =\dfrac{14}{20-x} \\\\8(20-x)=14x\\\\160-8x=14x\\\\22x=160\\\\x=\frac{160}{22} \\\\x=\frac{80}{11} \\\\\\x=7.\overline{27}$

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3 years ago

In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007 adults to learn about their maj

musickatia [10]

Answer:

a) 0.567

b) (0.5414,0.5926)

c) (0.5364,0.5976)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1007

Number of respondent that they will be able to afford health insurance in the future, x = 571

a) point estimate of the population proportion

$\hat{p} = \displaystyle\frac{x}{n} = \frac{571}{1007} = 0.567$

b) 90% Confidence Interval.

$\hat{p} + z_{\text{critical}}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

Putting values, we get,

$0.567 \pm 1.64\times \sqrt{\dfrac{0.567(1-0.567)}{1007}}\\\\0.567 \pm 0.0256=(0.5414,0.5926)$

c) 95% Confidence Interval.

$\hat{p} + z_{\text{critical}}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = \pm 1.96$

Putting values, we get,

$0.567 \pm 1.96\times \sqrt{\dfrac{0.567(1-0.567)}{1007}}\\\\0.567 \pm 0.0306=(0.5364,0.5976)$

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4 years ago

A lab technician mixed 26 milliliters of alcohol with 104 milliliters of water to make a solution. What percent of the solution

liq [111]

Mistura = 26 ml + 104 ml = 130 ml

130................100%
26.....................x

130x = 260
x = 260/130
x = 2 --> 2% de álcool

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3 years ago

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irga5000 [103]

Answer:

.06 or six hundredths

Step-by-step explanation:

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Molodets [167]

To find area you do length x width. To find perimeter you do length + width.

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