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1 year ago

Which picture shows a properreflection across the red dashed line?BA

Mathematics

1 answer:

Mnenie [13.5K]1 year ago

4 0

Answer:

The picture that shows a proper reflection across the red dashed line is figure B

$B$

Explanation:

Given the figure in the attached image, we want to determine the picture that shows a proper reflection across the red line.

We can observe that for the figure A, the dimension of the preimage and the image are not the same. So, figure A does not show a proper reflection across the red dash line.

For figure B, the dimension and shape of the preimage is the the same as the image (they are congruent).

Therefore, The picture that shows a proper reflection across the red dashed line is figure B

$B$

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Whoever helps gets brainliest!

lisov135 [29]

<h3>Answer:</h3>

4 miles per hour

<h3>Step-by-step explanation:</h3>

Unit rate is the rate of something per 1 unit. In other words, the unit rate is x units per 1 unit. In this situation, the unit rate is how many miles Hassan walks in 1 hour.

Proportion

First, to find the rate of anything we can set up a proportion. In the question, the rate is described as miles per hour, so the miles will be the numerator and the hours will be the denominator.

This creates the proportion $\frac{12miles}{3hours}$

So, the rate we are given is 12/3.

Unit Rate

To find the unit rate we need to make the denominator equal to 1. To do this, divide both the numerator and denominator by 3.

12/3 equals 4
3/3 equals 1

So, this means that the new proportion is 4/1. Next, we can add our units, which means that Hassan walks 4 miles per 1 hour.

Graph

Now we can resize the bar graph. The purple bar should be set to 4 because this represents the miles. Then, the green bar should be set to 1 because it represents the hours.

4 0

2 years ago

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Is 104.12 greater than 104.002

Liono4ka [1.6K]

Yes, 104.12 is greater than 104.002

because 104.12 rounds up to 104.1
and 104.002 rounds up to 104.0

8 0

3 years ago

The right triangle shown has angles x, y, and z and side lengths a, b, and

tekilochka [14]

(You forgot to provide the choices!?!)

A.) Cos Z = b/c

B.) Sin X= c/b

C.) Tan X = b/a

D.) Tan Z = a/b

B is the answer, Sin X = c/b is wong because Sin X= b/c ( sin = opposite/ hypotenuse)

Hope this helps.!

7 0

3 years ago

Find a formula for the general term of the sequence 5 3 , − 6 9 , 7 27 , − 8 81 , 9 243 , assuming that the pattern of the first

Mkey [24]

Answer:

The formula to the sequence

5/3, -6/9, 7/27, -8/81, 9/243, ...

(-1)^n. (4 + n). 3^(-n)

For n = 1, 2, 3, ...

Step-by-step explanation:

The sequence is

5/3, - 6/9, 7/27, - 8/81, 9/243, ...

We notice the following

- That the numbers are alternating between - and +

- That the numerator of a number is one greater than the numerator of the preceding number. The first number being 5.

- That the denominator of a number is 3 raised to the power of (2 minus the position of the number)

Using these observations, we can write a formula for the sequence.

(-1)^n for n = 1, 2, 3, ... takes care of the alternation between + and -

(4 + n) for n = 1, 2, 3, ... takes care of the numerators 5, 6, 7, 8, ...

3^(-n) for n = 1, 2, 3, ... takes care of the denominators 3, 9, 27, 81, 243, ...

Combining these, we have the formula to be

(-1)^n. (4 + n). 3^(-n)

For n = 1, 2, 3, ...

4 0

4 years ago

Question is in the pic please help

Virty [35]

Answer:

the slope is positive 2

the slope-intecept form would be, y=2x+3

Step-by-step explanation:

hope this helps!❆

4 0

3 years ago

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