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2 years ago

Which graph shows a dilation?

Mathematics

2 answers:

dimulka [17.4K]2 years ago

6 0

Answer:

The third one.

Explanation:

A dilation is a shrink or a stretch of a figure.

In a dilation, all sides either increase or decrease by the same scale factor. Additionally, in a dilation the angle measures of the figure do not change.

In the first figure, we can see that the base angles of the pre-image are slightly different than those of the image. This is not a dilation.

In the second figure, the angles are noticeably different; again, not a dilation.

In the fourth figure, much like the second figure, the angles are noticeably different. This is not a dilation.

In the third figure, however, we can see that the slanted sides of the larger figure go through three boxes; they are three units long. Additionally we can see that the slanted sides of the smaller figure go through 1 side; this is a dilation b a factor of 3.

The base sides of the third figure, in the larger shape, are 6 units long; in the smaller figure, they are 2 units long. This is a dilation by a factor of 3.

Roman55 [17]2 years ago

4 0

Answer:

THE THIRD OPTION

Step-by-step explanation:

I JUST TOOK THE QUIZ!!!!!!

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Answer:

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Step-by-step explanation:

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2 years ago

Philip wants to give $260 to United Way, but he wants to give it over the coming year. If he signs up to have a regular amount w

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Answer:

D. 5$

Step-by-step explanation:

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2 years ago

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What is the word form of 34/100

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A scientist poured 1.6 x 103 milliliters of water into a container that already had 2.8 x 104 milliliters of salt water and 9.4

Tomtit [17]

This question is incomplete

Complete Question

A scientist poured 1.6 x 10³ milliliters of water into a container that already had 2.8 x 10⁴ milliliters of salt water and 9.4 x 10³ milliliters of sugar water. How many milliliters of liquid were in the container?

A.1.7 x 10⁴ milliliters

B.3.58 x 10⁴ milliliters

C.3.74 x 10⁴ milliliters

D.3.9 x 10⁴ milliliters

Answer:

C. 3.74 x 10⁴ milliliters

Step-by-step explanation:

The milliliters of liquid that WERE in the container = The milliliters of liquid that were in the container before adding 1.6 x 10³ milliliters of water

This equals to:

2.8 x 10⁴ milliliters of salt water and 9.4 x 10³ milliliters of sugar water.

Hence:

2.8 x 10⁴ milliliters of salt water + 9.4 x 10³ milliliters of sugar water

= (2.8 × 10⁴) + (9.4 × 10³)

= 37400

= 3.74 x 10⁴ milliliters

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2 years ago

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marin [14]

Answer:

Option A. 2

Step-by-step explanation:

To solve this problem we can write equations for each shirt color.

Let's call:

b = black shirts

g = gray shirts

w = white shirts

B = brown shirts

If you have 3 times more black shirts than gray shirts and buy 3 more black shirts then:

$b = 3g +3$ (i)

If you have 5 times more white shirts than gray shirts and gave a white shirt then:

$w = 5g -1$ (ii)

It has 2 times more gray shirts than brown camsas, then:

$g = 2B$ (iii)

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$b = w$ (iv)

We want to find the number of gray shirts.

Then replace (iv) in (ii)

$b = 5g -1$ (v)

Now substitute (v) into (i) and clear g.

$5g -1 = 3g +3\\\\5g -3g = 3 +1\\\\2g = 4\\\\g = 2$

Joan has 2 gray shirts

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2 years ago