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2 years ago

HURRY PLS

1 answer:

7 0

The enlargement or a reduction in the dimensions of a building would cause a change in the scale factor is defined below:

<h3 /><h3>What is Scale Factor?</h3>

A scale factor in math is the ratio between corresponding measurements of an object and a representation of that object. If the scale factor is a whole number, the copy will be larger. If the scale factor is a fraction, the copy will be smaller.

A dilation is a transformation that enlarges or reduces a figure in size. This means that the pre image and image are similar and are either reduced or enlarged using a scale factor.

As seen in the graphics below. A reduction (think shrinking) is a dilation that creates a smaller image, and an enlargement (think stretch) is a dilation that creates a larger image.

If the scale factor is between 0 and 1 the image is a reduction.

Using dilation scale factors, we can shrink or expand a figure to the size we desire, knowing that each angle is congruent, each segment is proportional, the slope of each segment is maintained, and the perimeter of the pre image and image have the same scale factor.

Hence, this is how an enlargement or a reduction in the dimensions of a building would cause a change in the scale factor.

Learn more about scale factor here:

brainly.com/question/22312172

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You might be interested in

What's greater 0.2 or 0.2-repeating

astra-53 [7]

0.2(repeating) is equal to 0.222...
Thus 0.2(repeating) is larger.

Hope this helps! :)

8 0

3 years ago

Find the total surface area. A. 78 B. 98 C. 69 D. 92

Fofino [41]

The total surface area of the figure is 92 m².

<h3>How to find the surface area of a figure?</h3>

The surface area of a figure is the sum of the whole sides of the figure.

Therefore,

surface area = 4 × 4 + 4 × 4 + 6 × 4 + 2 × 4 + 1 / 2 (2 + 6)3.5 + 1 / 2 (2 + 6)3.5

Hence,

surface area = 16 + 16 + 24 + 8 + 14 + 14

Therefore,

surface area = 32 + 24 + 8 + 28

surface area = 56 + 8 + 28

surface area = 92 m²

learn more on surface area here: brainly.com/question/15476432

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8 0

1 year ago

Y= (x-3)^2 m divided by 4 + x divided by 3 - 5 divided by 2

liq [111]

the bottom one is the answer

7 0

3 years ago

In a random sample of 40 refrigerators, the mean repair cost was $150. Assume the population standard deviation is $15.50. Const

Mama L [17]

Answer: ($143.69, $156.31)

Step-by-step explanation:

Confidence interval to estimate population mean :

$\overline{x}\ \pm z\dfrac{\sigma}{\sqrt{n}}$

, where $\sigma$ = population standard deviation

n= sample size

$\overline{x}=$ Sample mean

z= critical value.

As per given,

n= 40

$\sigma$ = $15.50

$\overline{x}=$ $150

Critical value for 99% confidence level = 2.576

Then, 99% confidence interval for the population mean:

$150\pm(2.576)\dfrac{15.50}{\sqrt{40}}\\\\\Rightarrow\ 150\pm6.31 \ \ (approx)\\\\\Rightarrow(150-6.31,150+6.31)=(143.69,156.31)$

Hence, the required confidence interval : ($143.69, $156.31)

6 0

4 years ago

Some one help me on this one

aleksandrvk [35]

The answer is III only, or D.

We can start to solve this by knowing what the HL theorem means. The HL theorem, like its name implies, shows says that if a hypotenuse and leg of a triangle are congruent to the hypotenuse and leg of a different triangle, then the triangles are congruent. The only triangle that we see a hypotenuse congruent in is in figure III. In figure II, those congruent sides are both legs while in figure I we just see 2 congruent angles. Now in figure III, we can also see that two legs are congruent because of the reflexive property. That means that the answer is III, or D.

5 0

3 years ago