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earnstyle [38]
2 years ago
15

On a coordinate plane, quadrilateral Q R S T has points (0, 2), (negative 4, 0), (0, negative 3), and (4, 0).

Mathematics
1 answer:
Afina-wow [57]2 years ago
8 0

By applying the definitions of <em>rigid</em> transformation ((x, y) → (0.5 · x, 0.5 · y)) and dilation, we conclude that the coordinates of Q'(x, y) are (0.1).

<h3>How to apply rigid transformations on a point</h3>

Herein we must apply a rigid transformation into a given point to determine an image. <em>Rigid</em> transformations are transformations applied on a <em>geometric</em> locus such that <em>Euclidean</em> distance is conserved. Dilations are a kind of <em>rigid</em> transformations such that:

(x, y) → (k · x, k · y), for k > 0

If we know that Q(x, y) = (0, 2) and k = 0.5, then the coordinates of Q' are:

Q'(x, y) = (0.5 · 0, 0.5 · 2)

Q'(x, y) = (0, 1)

By applying the definitions of <em>rigid</em> transformation ((x, y) → (0.5 · x, 0.5 · y)) and dilation, we conclude that the coordinates of Q'(x, y) are (0.1).

To learn more on dilations: brainly.com/question/13176891

#SPJ1

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A house painter has an annual income of $35,000 and paid $2,500 in income tax. What percent of her income is the income tax?
almond37 [142]

Answer:

The 7.14% of her income is the income tax .

Step-by-step explanation:

Formula

Percentage = \frac{Part\ value\times 100}{Total\ value}

As given

A house painter has an annual income of $35,000 and paid $2,500 in income tax.

Here

Part value = $2500

Total value = $35000

Put in the formula

Percentage = \frac{2500\times 100}{35000}

Percentage = \frac{250000}{35000}

Percentage = 7.14\ (Approx)

Therefore the 7.14% of her income is the income tax .

3 0
3 years ago
5 = 2x + 5<br><br>what is this for Pre-Algebra ​
Talja [164]

Answer: p

Step-by-step explanation:

We want to start by isolating the variable.

Subtract 5 from both sides.

In this case, that will leave you with 0= 2x.

After this, you want to completely isolate the variable by dividing by two.

0/2 still equals 0, so X will equal 0.

3 0
3 years ago
The sum of a and 3a is​
kotegsom [21]

\boxed{4a} ✅

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

a + 3a \\  = 4a

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5 0
3 years ago
Read 2 more answers
Please help I need a quick answer
zimovet [89]

Answer:

the first one

Step-by-step explanation:

have a great day :D

4 0
3 years ago
A simple random sample of size n=40 is obtained from a population with a mean of 20 and a standard deviation of 5. Is the sampli
gulaghasi [49]

If the sample size is n=40 ,mean of 20 and a standard deviation then the sampling distribution is normally distributed.

Given sample size is 40, sample mean is 20, sample standard deviation is 5.

We have to find whether the distribution is normally distributed or not.

Normal distribution is an arrangement of a data set in which most values cluster in the middle of the range and the rest taper off simultaneously towards either extreme. It may be one tailed or two tailed also.

Yes the given distribution whose sample size is 40, sample mean of 20 and sample standard deviation of 5 is normally distributed as the sample size is greater than 30.

Signs of normal distribution are:

  • Symmetric bell shape
  • mean and median are equal both located at the center of the distribution
  • 68% approximately equals 68% falls within 1 standard deviation of the mean.

Hence the sampling distribution is normally distributed.

Learn more about normal distribution at brainly.com/question/4079902

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6 0
2 years ago
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