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Elanso [62]
3 years ago
9

There are 500 toothpicks in a small box. If a jumbo box is made by doubling all the dimensions of the small box, how many toothp

icks will the jumbo box hold?
A. 2,000 Tooth Picks
B. 8,000 Tooth Picks
C. 1,000 Tooth Picks
D. 4,000 Tooth Picks
Mathematics
2 answers:
Kisachek [45]3 years ago
4 0
Volume is length x width x height. if you double those it is 2length x 2width x 2 height so you are increasing the volume by 8 times (2x2x2). 8 x 500 = 4000<span>                                   D.) 4,000 Toothpicks
</span>
Tamiku [17]3 years ago
4 0

Answer:

Option: D is the correct answer.

D. 4000 Tooth picks.

Step-by-step explanation:

It is given that:

There are 500 toothpicks in a small box.

so, let the dimensions of small box be:

x units×y units×z units.

This means that the volume of the small box is:

Volume(V)=xyz cubic units.

Now a jumbo box is made by doubling all the dimensions of the small box.

This means that the dimensions of the jumbo box are:

2x units×2y units×2z units.

Hence, the volume of jumbo box is:

Volume(V')=8xyz cubic units.

As the number of toothpicks hold by a box of volume xyz cubic units are:500.

So, the number of toothpicks hold by a box of volume 8xyz cubic units will be:8×(500)=4000

Hence, the number of toothpicks that jumbo box can hold are:

D. 4,000 Tooth Picks

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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.

<u><em>Let </em></u>\mu<u><em> = mean Ohio scores.</em></u>

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 <u>One-sample z test statistics</u> 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, <u><em>test statistics</em></u>  =  \frac{20.8-21.1}{\frac{3}{\sqrt{500}}}  

                              =  -2.24

The value of z test statistics is -2.24.

<em>Now, at 0.1 significance level the z table gives critical value of -1.2816 for left-tailed test.</em><em> 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 </em><em><u>we reject our null hypothesis</u></em><em>.</em>

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

4 0
3 years ago
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Answer:

yes

if you solve the equation,

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x=26/2=13

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

For 2 ft on x-axis it has elevated 0.3 ft on y-axis

m=0.3/2=0.15 ft

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6 0
3 years ago
Sam invests $800 at 6%/a compounded annually for 5 years. What is the total interest<br> earned?
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<h3>Answer:    270.58 dollars</h3>

======================================================

Work Shown:

  • A = account value after t years
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  • r = interest rate in decimal form = 0.06
  • n = number of times we compound per year = 1
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So,

A = P*(1+r/n)^(n*t)

A = 800*(1+0.06/1)^(1*5)

A = 1070.58046208

A = 1070.58

After five years, the account will have $1,070.58 in it.

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3 years ago
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