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3 years ago

Help please 7^-1 x 7^5/7^6

Mathematics

1 answer:

Nady [450]3 years ago

5 0

Answer:7^-2

Step-by-step explanation:

7^-1(7^5/7^6)=7^-1*7^(5-6)=7^-1*7^-1=7^(-1-1)=7^-2

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Slope of the line (0,7), (4,4)

belka [17]

Answer:

-3/4

Step-by-step explanation:

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2 years ago

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In 2008, there were 507 children in Arizona out of 32,601 who were diagnosed with Autism Spectrum Disorder (ASD) ("Autism and de

Svetach [21]

Answer:

The 99% confidence interval for the proportion of ASD in Arizona is (0.014, 0.018).

Step-by-step explanation:

The information provided is as follows:

$x=507\\n=32601\\\text{Confidence level }=99\%$

The sample proportion is:

$\hat p=\frac{x}{n}=\frac{507}{32601}=0.016$

The critical value of <em>z</em> for 99% confidence level is, <em>z</em> = 2.56.

Compute the 99% confidence interval for the proportion of ASD in Arizona as follows:

$CI=\hat p\pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}$

$=0.016\pm 2.58\cdot\sqrt{\frac{0.016(1-0.016)}{32601}}\\\\=0.016\pm 0.0018\\\\=(0.0142, 0.0178)\\\\\approx (0.014, 0.018)$

Thus, the 99% confidence interval for the proportion of ASD in Arizona is (0.014, 0.018).

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3 years ago

Im working with FOIL distribution system, and the distribution says that x times 2x= 2x^2. Why does it make it squared equation?

jek_recluse [69]

Answer:

No, let me explain

Step-by-step explanation:

The definition of squared is a value multiplied by itself, and in this case, 2x(x) x is being multiplied by itself. Keep in mind that x is a value, so it could be any number. We can't say that x times 2x equals 2x, because you are multiplying 2x by the value of x.

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3 years ago

As you move the pointer over font names in the font list, the text on the slide displays a ____ of the different font choices.

mojhsa [17]

Answer:

Live preview

Step-by-step explanation:

Live preview

When looking for a font name live preview is the real time view of how a font looks. Software which provides a live preview allows the person to see their font as it would appear if published, updated live as they make changes

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3 years ago

1.62 as a percentage

goldenfox [79]

1.62 as a percentage would be 162%. Hope this is helpful!

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4 years ago

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