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sveta [45]
3 years ago
8

Under a dilation, are the pre-image and the image always, sometimes, or never congruent?

Mathematics
1 answer:
DerKrebs [107]3 years ago
4 0

Answer:

Never congruent

Step-by-step explanation:

A dilation is a transformation that makes an image that is thr same shape as the original, but a DIFFERENT SIZE.

Congruent shapes means they both have the same shape AND size.

So a dilation of the new image/shape can NEVER have the same shape AND size with the original.

BRAINLIEST?? TY!! :DD

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1.- En la cooperativa escolar se vendieron 296 refrescos en total. Si los refrescos chicos vendidos fueron el triple de los
Allisa [31]

Answer:

222 small ones and 74 middle ones

Step-by-step explanation:

The computation is shown below:

Let us assume medium ones be x

so the small ones be 3x

And, the total is 296

So, the equation is

x + 3 x = 296

4x = 296

Medium ones = x = 74

And, the small ones is = 3 × 74

= 222

8 0
3 years ago
Find the area of a regular octagon with an apothem 9.7 meters long and a side length of 8 meters.
rosijanka [135]
The area of a regular octagon is:
A = a * P / 2,  where a is an apothem and P is a perimeter.
P = 8 * 8 m = 64 m
A = 9.7 m * 64 m / 2
A = 620.8 / 2 m²
A = 310.4 m²
Answer:
The area of a regular octagon is 310.4 m².
4 0
3 years ago
. Express the ratios in its simplest form (a) 15:12 (b) 42:1
telo118 [61]

Answer:

See answers below

Step-by-step explanation:

Given the following ratios. We are to express them in their simplest forms

15:12

= 15/12

= (3*5)/(3*4)

= 3/3 * 5/4

= 5/4

b) 42:1

= 42/1

= 42

Given that  2:x :: 4:6​

2/x = 4/6

Cross multiply

4x = 2*6

4x = 12

x = 12/4

x = 3

Hence the value of x is 3

7 0
3 years ago
In circle with m angle NPQ=34 and NP = 14 units , find the length of arc NQ . Round to the nearest hundredth .
raketka [301]

Answer:

8.3units

Step-by-step explanation:

formula 2πr × x/360

where x= angle of sector

therefore

2× 22/7 × 14 × 34/360 = 8.3

8 0
3 years ago
Please help we with this angle relationship
Alexxandr [17]

Answer:

x=5 30 degrees

Step-by-step explanation:

theres 90 degrees in the right angle and you already have 60 degrees so you know it has to equal to 90 degrees so it has to be 30 degrees and 6 x 5 is equal to 30

4 0
3 years ago
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