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4 years ago

What is the value of x?

Mathematics

1 answer:

Ket [755]4 years ago

6 0

Answer:

Step-by-step explanation:

As we can see in the picture, the bigger pentagon is a scale copy of the smaller one with a scale factor of 2. Hence, all the sides on the smaller pentagon multiplied by 2 gives us the bigger pentagon. We can find the scale factor by looking at the biggest side of the pentagon. Hope this helped, Thank you.

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Marcel had drama practice 8.75 hours from Monday to Friday if he practices the same amount each day how many hours does marcel s

AURORKA [14]

It would be 1.75 hours each day

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3 years ago

Describe how the variability of the distribution changes as the sample size increases. As the sample size increases, the variabi

wolverine [178]

Answer:

As the sample size increases, the variability decreases.

Step-by-step explanation:

Variability is the measure of actual entries from mean. The less the deviations the less would be the variance.

For a sample of size n, we have by central limit theorem the mean of sample follows a normal distribution for random samples of large size.

X bar will have std deviation as $\frac{s}{\sqrt{n} }$

where s is the square root of variance of sample

Thus we find the variability denoted by std deviation is inversely proportion of square root of sample size.

Hence as sample size increases, std error decreases.

As the sample size increases, the variability decreases.

7 0

3 years ago

Keri is making a doll clothes for a holiday craft show. The wholesale cost of the materials for one outfit is $9.38. If she sell

irinina [24]

Answer:

60%

Step-by-step explanation:

If I get you right, you're asking for the percentage gain to the nearest percentage, right?

Now to do this, we need to get the amount of profit she made. That's quite easy, we only need to subtract the cost price from the selling price. And that equals $15 - $9.38 that equals $5.62.

Now, we divide this value by the cost price and multiply by 100% to get the percentage gain.

I.e 5.62/9.38 × 100%.

That gives 59.9% , which equals 60% when approximated to the nearest percentage.

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3 years ago

How do I find tips and discounts?

Whitepunk [10]

Well, there are many apps and websites such as Honey to help you. You can also find then on newspapers and magazines where you can find coupons for discounts. And you can find tips in places like BRAINLY like I am doing now.

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3 years ago

Mr. White can walk 3 miles in 45 minutes. How far can he walk in 1 hour

ioda

Answer:

i hyave no clu

Step-by-step explanation:

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7 0

3 years ago

Read 2 more answers