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3 years ago

What does it mean to talk about the 'volume' of the rectangular box or cylindrical container

2 answers:

6 0

Find how much space the object takes up by multiplying the height and base for the rectangular box, and multiplying the height and area of circle (area of circle formula--2πr) for the cylinder.

In-s [12.5K]3 years ago

6 0

Answer:

When we talk about volume we talk about three dimensional object which Occupies Space.Unit of Volume is Litre or Mililitre or Cm³,mm³.

So, Volume of Rectangular box means a three dimensional , six faced object called Cuboid which can keep any substance in it tha is Occupies Space and has mass.

As well as volume' of cylindrical container has same meaning .It has mass as well as it occupies Space can keep object or material inside it.

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A recipe called for using 2 6/8 cups of flour before baking the another 3 1/2 cups after baking what is the total amount for flo

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Answer:

Step-by-step explanation:

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3 years ago

What is the surface area of a cylinder in 9in,7in, and 5in ?

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50 I can’t even explain

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3 years ago

A random survey of 1000 students nationwide showed a mean ACT score of 21.1. Ohio was not used. A survey of 500 randomly selecte

vodka [1.7K]

Answer:

We conclude that the mean Ohio score is below the national average.

Step-by-step explanation:

We are given that a random survey of 1000 students nationwide showed a mean ACT score of 21.1. Ohio was not used.

A survey of 500 randomly selected Ohio scores showed a mean of 20.8. The population standard deviation is 3.

Let $\mu$ = mean Ohio scores.

So, Null Hypothesis, $H_0$ : $\mu$ $\geq$ 21.1 {means that the mean Ohio score is above or equal the national average}

Alternate Hypothesis, $H_A$ : $\mu$ < 21.1 {means that the mean Ohio score is below the national average}

The test statistics that would be used here One-sample z test statistics as we know about population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n}}}$ ~ N(0,1)

where, $\bar X$ = sample mean Ohio score = 20.8

$\sigma$ = population standard deviation = 3

n = sample of Ohio = 500

So, test statistics = $\frac{20.8-21.1}{\frac{3}{\sqrt{500}}}$

= -2.24

The value of z test statistics is -2.24.

Now, at 0.1 significance level the z table gives critical value of -1.2816 for left-tailed test. Since our test statistics is less than the critical values of z as -2.24 < 1.2816, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the mean Ohio score is below the national average.

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4 years ago

The expression 4x/5 - 2x/5 is equivalent to...

madreJ [45]

If you would like to know the equality of the expression 4 * x/5 - 2 * x/5, you can calculate this using the following steps:

4 * x/5 - 2 * x/5 = (4 - 2) * x/5 = 2 * x/5

The correct result is 2 * x/5, which is none of the results written above.

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4 years ago

Fathi has $1.10 , in his printing account. Each sheet of paper he uses reduces his printing account balance by $0.25. Fathi want

lianna [129]

Answer:

-$1.9

Step-by-step explanation:

There are 47 pages.

Printing on both sides would divide the number of pages into half.

47/2 = 23.5

2 pages on each side would mean 4 pages on one sheet. Therefore, the number of pages will be further divided by 2.

23.5/2 = 11.75

There cannot be 11.75 pages so we will round it up to 12 pages.

Each page costs $0.25 so 12 pages will cost:

12 x 0.25 = $3

Faithi has $1.1 so new account balance will be:

1.1 - 3 = $-1.9

Therefore, Fathi's balance in his printing account would be negative $1.9.

3 0

4 years ago