In which line did the student make the first mistake? (4 points)

Mathematics

1 answer:

Luba_88 [7]4 years ago

7 0

There is no way to answer this without more information available

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The rectangular floor of a closet is divided into two right triangles by drawing a diagonal. One leg of the right triangle is 11

AysviL [449]

W = width
2w + 2 = length 
w^2 + (2w + 2)^2 = 13^2 
w^2 + 4w^2 + 8w + 4 - 169 = 0 
5w^2 + 8w - 165 = 0 
(5w + 33)(w - 5) = 0 
w = 5 ft width 
2(5) + 2 = 12 ft length

5 0

3 years ago

2x^6/20x^7 pls help me i have a test today and i don’t know how to solve it

Vedmedyk [2.9K]

Answer:

$\frac{1}{10x}$

Step-by-step explanation:

$\frac{2x^{6} }{20x^{7} } = \frac{x^{6} }{10x^{7} } \\\\=\frac{1}{10x}$

3 0

3 years ago

I’m confuse on what to do

sasho [114]

Distribute
-5a+30+2a

And then combine like terms

-3a+30

3 0

3 years ago

Benjamin rode tghe train for 45 minutes. Then it took him another 30 minutes to walk to his friend's house. How many hours did h

statuscvo [17]

Answer:

1.25 hours

Step-by-step explanation:

Benjamin rode tghe train for 45 minutes. Then it took him another 30 minutes to walk to his friend's house. How many hours did he spend riding and walking to his friend's house?

The number of hours he spent riding and walking to his friends house is calculated as:

45 minutes + 30 minutes

= 75 minutes

Converting this to hours

60 minutes = 1 hour

75 minutes = x

Cross Multiply

60 × x = 75 × 1

x = 75/60

x = 1.25 hours

8 0

3 years ago