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2 years ago

Consider parallelogram ABCD. Which of the following transformations will change the perimeter of the parallelogram?

Mathematics

1 answer:

jeka57 [31]2 years ago

4 0

In geometry, transformation involves changing the position and/or size of a shape.

The transformation that will change the size of ABCD is dilation.

There are four transformations in geometry:

Translation
Reflection
Rotation
Dilation

Of all types of transformation, dilation will change the size of the shape,

The new shape will either be enlarged or reduced

Either ways, the size of the shape will be altered.

When the size is altered, the perimeter will not remain the same.

Hence. dilation will change the perimeter of ABCD.

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An angle measures 48.4° less than the measure of its complementary angle. What is the measure of each angle?

Gennadij [26K]

Answer:

The angles are 69.2 degrees and 20.8 degrees

Step-by-step explanation:

Complementary angles, when added together, = 90°

We’ll call the first unknown angle a and the second angle b

b = a - 48.4

a + b = 90

So let’s substitute in for b in the second equation:

a + a - 48.4 = 90

2a - 48.4 = 90

2a = 138.4

a = 69.2

69.2 - 48.4 = 20.8 = b

Now, does a + b = 90?

69.2 + 20.8 = 90

Lmk if you have questions

3 0

2 years ago

According to the Pew Internet & American Life Project, 54% of Internet users have a wireless connection to the Internet via

Setler79 [48]

Answer: 0.135

Step-by-step explanation:

if 54 % of internet users have a wireless connection then number of people that do nor have a wireless connection =46%.

Let A be the event that 54% of internet users have wireless connection.

Let B be the event that 25% of these users that have internet connection use twitter to share updates about themselves.

Hence, probability of A and B happening becomes:

P(AnB) = P(A) * P(B)

P(AnB) = 0.54 * 0.25

P(AnB) = 0.135

4 0

2 years ago

Molly owes her brother $300.She works for $10 per hour as a checker at the local grocery store.Molly plans to repay her brother

gavmur [86]

Answer: The expression which represents the condition described is given as $4x=300$

Step-by-step explanation:

Since we have given that

Amount that Molly owes her brother = $300

Let the number of hours she worked as a checker be x

Cost of per hour = $10

Amount she get after doing work for x hours is given by

$10x$

Rate of tax are taken out = 80%

So, amount she left with is given by

$\frac{100-20}{100}\times 10x\\\\=\frac{80}{100}\times 10x\\\\=8x$

So, Molly plans to repay her brother half of what she earns is given by

$\frac{8x}{2}=4x$

According to question,

$4x=300\\\\x=\frac{300}{4}\\\\x=75\ hours$

So, the expression which represents the condition described is given as

$4x=300$

3 0

3 years ago

Read 2 more answers

What trig function would I use to solve for x?

IRINA_888 [86]

Answer:

Cosine

Step-by-step explanation:

SohCahToa

The sides are: adjacent to the angle and are the hypotenuse.

(hope this helps :P)

8 0

2 years ago

Explain and I’ll mark as brainliest too also worth 20 points

USPshnik [31]

Answer:

x = 3

Step-by-step explanation:

The equation is,

16 = 5x+1

Subtract 1 from both sides,

16-1 = 5x

15 = 5x

Divide by 5,

x = 3

7 0

2 years ago

Read 2 more answers