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3 years ago

10

26:12

1 answer:

wlad13 [49]3 years ago

6 0

Step-by-step explanation:

Function of the cylinder is to measure liquid volumes accurately. They are extensively used in chemistry and biology labs, where quantities of accurately measured liquids need to be used. They are purposely designed to be long, with a shorter diameter compared to beakers, to facilitate accurate measurements.

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Ainat [17]

Answer:

The inequality $\frac{8}{4}\:$ is true.

Step-by-step explanation:

Given

$\frac{8}{5}$

FALSE

Reason: 8/5 or 1.6 is greater than 9/10 or 0.9

$1>\frac{6}{5}$

FALSE

Reason: 1 is smaller than 6/5 or (1.1)

$\frac{5}{2}$

converting mixed number to improper fraction

$\frac{5}{2}$

FALSE

Reason: 5/2 can not be less than 5/2

$\frac{8}{4}\:$

$2$

TRUE

Reason: 2 is indeed smaller than 5/2 or 5.2 ∵ 5/2 = 2.5

Therefore, inequality $\frac{8}{4}\:$ is true.

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3 years ago

Express the decimal 2.39 as a percent. <br> A. 23.9% <br> B. 240% <br> C. .239% <br> D. 239%

Assoli18 [71]

Solve:-

2.39 = decimal

2.39 × 100 = 239
239%

2.39 = C. 239%

6 0

3 years ago

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A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who

dezoksy [38]

Answer:

The sample size is $n =68$

Step-by-step explanation:

The population proportion is $\^ p = 0.50$

The margin of error is $E = 0.1$

From the question we are told the confidence level is 90% , hence the level of significance is

$\alpha = (100 - 90 ) \%$

=> $\alpha = 0.10$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.645$

Generally the sample size is mathematically represented as

$n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )$

=> $n = [\frac{1.645 }{0.1} ]^2 * 0.50 (1 - 0.50 )$

=> $n =68$

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3 years ago

Calvin wants to know the proportion of students at his school who plan to

tester [92]

The answer is b. Let me know if you need an explanation

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3 years ago

Please help me! I can’t find the perimeter of this shape

I am Lyosha [343]

Answer:

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3 years ago

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