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aleksandrvk [35]
2 years ago
7

Justin calculates the perimeter of a rectangle with a length of 2x-3 and width

Mathematics
2 answers:
Scorpion4ik [409]2 years ago
6 0

Answer:

No, his answer should have been 6x+2

Step-by-step explanation:

The equation for perimeter is 2L+ 2W=P

so 2 (2x-3) + 2 (x+4) = 6x+2

n200080 [17]2 years ago
5 0

Answer:

No

Step-by-step explanation:

No, because the perimeter of a rectangle is 2(x+y). Justin added the sides. Then he should have multiplied by 2 but he didn't so Justin is incorrect.    

Hope this helps plz mark brainliest :D

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Elizabeth lives in San Francisco and works in Mountain View. In the morning, she has 3 transportation options (take a bus, a cab
Lesechka [4]

Answer:

4/9

Step-by-step explanation:

The possibilities of transportation: (The first will be for morning, second will be for afternoon)

B, B

B, C

B, T

C, B

C, C

C, T

T, B

T, C

T, T

It is clearly seen that there are 9 transportation options.

(Using cab 1 time we have BC, CB, CT, TC. So four of the transportation methods use cab one time.)

Therefore, the probability that she will use a cab only once is 4/9.  

6 0
3 years ago
A prism is dilated by a factor of 1. 5. How many times larger is the volume of the resulting prism than the volume of the origin
andre [41]

The volume of the resulting prism is 3.375 times of original volume.

<h3>What is a dilation or scale factor?</h3>

The factor by which the dimensions of an object are enlarged is called the scale factor.

Let us take the base area of Prizm = a²

Height of the prism = h

Enlarged area = (scale factor)² * previous area

Enlarged area = 1.5²*a² = 2.25a²

Enlarged height = 1.5h

So, enlarged volume = enlarged area* enlarged height

Enlarged volume= 2.25a²*1.5h = 3.375a²h

Enlarged area/previous area = 3.375a²/a² = 3.375

Therefore, the volume of the resulting prism is 3.375 times of original volume.

To get more about dilation visit to:

brainly.com/question/10253650

3 0
2 years ago
3r+n^2-r+5-2n+2 simplify
andrey2020 [161]
3r+n^2-r+5-2n+2=n^2-2n+(3r-r)+(5+2)\\\\=\boxed{n^2-2n+2r+7}
4 0
2 years ago
The diagram shows a 140° sector in a circle of radius 8 units.
Hitman42 [59]

Answer: 78 square units

Step-by-step explanation:

7 0
2 years ago
How do you write a fraction that is a miked number of 13/6
Cloud [144]
Divide 13 and 6. you should get 2 remainder 1. don't put remainder. put 2 1/6 because it goes into there 2 times with 1 remainder out of 6.
8 0
3 years ago
Read 2 more answers
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