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sesenic [268]
3 years ago
6

Kayla is adding numbers using a number line. She starts at 5. She claims that any number she adds will result in her starting at

5 and moving to the right on the number line.
Part A: Enter a number Kayla could add to 5 that supports her claim.
Part B: Enter a number Kayla could add to 5 that shows her claim is incorrect.
Mathematics
2 answers:
zepelin [54]3 years ago
5 0

Step-by-step explanation:

<h3>Part A</h3>

Kayla is correct if the number she adds is positive.

<u>Any positive number n added to the 5 will result in:</u>

  • n + 5, which is to the right from the 5 on the number line.
<h3>Part B</h3>

Kayla is incorrect if the number she adds is negative.

<u>Any negative number n added to the 5 will result n:</u>

  • 5 - n, which is to the left from the 5 on the number line.
lana [24]3 years ago
4 0

Answer:

-2 will be the answer I think it will help so much my answer

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Arrange these numbers from least to greatest 2/5 5/7 4/9
mr Goodwill [35]
4/9 2/5 5/7 is sorted from least to greatest

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Read 2 more answers
How can you tell which function has the greatest constant of variation?
alekssr [168]

The constant of variation in a <span>direct variation </span>is the constant (unchanged) ratio of two <span>variable </span>quantities.

The formula for direct variation is

<span><span>y=kx  </span></span>(or <span><span>y=kx</span></span>)

where <span>kk</span> is the constant of variation.

Example 1:

If <span>y</span> varies directly as <span>x</span> and <span><span>y=15</span></span> when x=24,

find <span>x</span> when <span><span>y=25</span></span> .

Find the constant of variation.

<span><span><span>k=<span>y/x</span>=<span>15/24</span>=<span>5/</span></span></span></span>8y=5/8x

To find <span>x</span>, substitute <span>25</span> for y.

25=5/8x

<span><span><span>x=40</span></span></span>


The constant of variation in an <span>indirect variation </span>is the constant (unchanged) product between two variable quantities.

The formula for indirect variation is

<span><span>xy=k </span></span>(or <span><span>y=<span>k/x</span></span></span> )

where <span>k</span> is the constant of variation .

Example 2:

If it takes <span>4</span> hours at an average speed of <span>90</span> km/h to do a certain journey, how long would it take at <span>120</span> km/h?

Find the constant of variation.

<span>k</span> = speed · time

<span><span>k=90⋅4=360</span></span>

Then,

<span><span><span>time=<span>k/speed</span></span><span> =<span>360/120</span></span><span> =3 hours.</span></span></span>

6 0
4 years ago
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marissa [1.9K]

Answer:

$30

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8 0
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Scorpion4ik [409]

Solution :

The level of significance refers to the probability of the null hypothesis that may be rejected in the study by the observer. As the sample size increases, the p value also increases but the significance remains same. When the sample size increase and becomes large, the null hypothesis can be rejected more easily.

The business decisions are taken defending the significance level of the statistical validation in cases of uncertainty. Suppose the null hypothesis is the sales after the marketing campaigning remains same. The company will launch the marketing campaign when the confidence level is 95% so that after the campaign the sales will increase. It means that the significance level must be high enough for rejecting null hypothesis of sales post of the marketing campaign that remains same.

When the sample size increases, the sensitivity of hypothesis increases, and for a large sample, the hypothesis may be rejected even though it is true.  

4 0
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