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3 years ago

Which triangles (if any) can be shown to be congruent using a rotation?

Mathematics

2 answers:

saveliy_v [14]3 years ago

8 0

Answer:

Step-by-step explanation:

alright, lets get started.

There are three triangles are given .

For 1 and 2 to be congruent, a triangle needs to be reflected. Means reflection is required.

For 1 and 3 to be congruent, a triangle needs to be reflected and rotated both, means reflection and rotation both are required.

For 2 and 3, triangle needs to be rotated only.

Means for triangle 2 and 3 to be congruent, it needs rotation.

So, the answer is 2 ans 3 option B : answer

Hope it will help :)

-BARSIC- [3]3 years ago

7 0

B...Triangles 2 and 3 are rotations of each other. Triangle 1 requires a reflection.

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Sienna decides to buy a car. She has enough money saved up for the down payment on the car. The total cost of the car including

MAVERICK [17]

The answer will be B 179.17 cuz she will have a lot of money by the time 2 years will be up to pay 24 equal payments

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3 years ago

Select the correct answer. Which number has a terminating decimal expansion? A. 2/7 B.√12 C. 5/8 D. 2/11

quester [9]

Answer:

Option C is correct option.

Step-by-step explanation:

We need to determine which number has a terminating decimal expansion.

Terminating decimal

A decimal number that contains a finite number of digits after the decimal point is called terminating decimal .

for example 0.123 is terminating decimal as it has finite number of digits after decimal point.

Now, we will look at each option to find the terminating decimal

A. 2/7

Converting in decimal form: 0.28571....

As it doesn't contain finite numbers after decimal point, so 2/7 is not terminating decimal.

B.√12

Converting in decimal form: 3.46410....

As it doesn't contain finite numbers after decimal point, so √12 is not terminating decimal.

C. 5/8

Converting in decimal form: 0.625

As it contain finite numbers after decimal point, so 5/8 is terminating decimal.

D. 2/11

Converting in decimal form: 0.18181....

As it doesn't contain finite numbers after decimal point, so 2/11 is not terminating decimal.

Therefore, Option C is correct option.

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2 years ago

For the month of March in a certain city, 57% of the days are cloudy. Also in the month of March in the same city, 55% of the da

oksian1 [2.3K]

Answer: 0.9649

Step-by-step explanation:

Let A denote the event that the days are cloudy and B denotes the event that the days are rainy.

Given : For the month of March in a certain city, the probability that days are cloudy : $P(A)=0.57$

Also in the month of March in the same city,, the probability that the days are cloudy and rainy : $P(A\cap B)=0.55$

Now by using the conditional probability, the probability that a randomly selected day in March will be rainy if it is cloudy will be :-

$P(B|A)=\dfrac{P(A\cap B)}{P(A)}$

$\Rightarrow\ P(B|A)=\dfrac{0.55}{0.57}\\\\=0.964912280702\approx0.9649\ \ \text{[Rounded to four decimal places.]}$

Hence, the probability that a randomly selected day in March will be rainy if it is cloudy = 0.9649

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3 years ago

There are 399 items advertised in a catalog. If the catalog is 75 pages long, what is the average number of items per page?

sukhopar [10]

Answer:

Step-by-step explanation:

Well, we can divide 399 and 75 so it would be 5.32. Round that and it would be about 5 items per page

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3 years ago

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romanna [79]

Answer:

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Step-by-step explanation:

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3 years ago

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