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Sloan [31]
3 years ago
7

A vertical plane intersects the three-dimensional object in the image and divides the object into equal halves. What is the shap

e of the cross section?
Thank you :)

Mathematics
2 answers:
Crank3 years ago
7 0
If you were to take a knife and cut this shape down the middle, starting from the top, what will the cross section look like? 
It will look a lot like how the object looks from the side.
The best answer is D, the last image. 
dlinn [17]3 years ago
6 0

Answer:

Option 4 is correct .

Step-by-step explanation:

Given : A three dimensional figure

To Find : What is the shape of the cross section?

Solution :

If we intersects the three-dimensional object in the image and divides the object into equal halves by vertical plane then we can see the attached figure what the output will be .

We can see that if we see the cross section from the side then it looks like the fourth one

So, Option 4 is correct .



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2. Solve the system of equations. Write your answer in parametric vector notation. X, +5x2 + 4x3 + 3x4 +9xs = 18 2x, +6x2 + 4x3
ratelena [41]

Answer:

The system is inconsistent.

Step-by-step explanation:

The system is

x_1+5x_2+4x_3+3x_4+9x_5=18\\2x_1+6x_2+4x_3+6x_4+6x_5=28\\3x_1+7x_2+4x_3+10x_4+x_5=41\\4x_1+6x_2+2x_3+7x_4+4x_5=29

The associated matrix to the system is

\left[\begin{array}{cccccc}1&5&4&3&9&18\\2&6&4&6&6&28\\3&7&4&10&1&41\\4&6&2&7&4&29\end{array}\right]

Now we use row operations to find the echelon form of the matrix:

1. We substract to row 2, two times the row 1.

We substract to row 3, three times the row 1.

We substract to row 4, four times the row 1 and obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&-4&-4&0&-12&-8\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]

2. We multiply the second row of the preview step by -1/4. We obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]

3.

We add to row 3, eight times the row 2.

We add to row 4, fourtheen times the row 2 and obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&-5&10&-155\end{array}\right]

4. We add to row 4 of the preview step, five times the row 3 and obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&0&0&-140\end{array}\right]

Using backward substitution we have that

0x_5=-140, then 0=-140 and this is absurd. Then The system is inconsistent.

4 0
3 years ago
Change the following quantity into the indicated unit.
mafiozo [28]

Answer:

11.8 in.

Step-by-step explanation:

8 0
3 years ago
(X-5)1/2+5=2 what is a possible solution?
Dmitry [639]

Answer:

X=-1

Step-by-step explanation:

(X-5)1/2+5=2

(X-5)1/2=2-5

(X-5)1/2=-3

(X-5)=-3 *2

X-5=-6

X=-1

6 0
3 years ago
How do you write 10% as a decimal?
Tatiana [17]
10% as a decimal is 0.10


Hope this helps!
5 0
2 years ago
Read 2 more answers
Which is bigger:<br> 3/8 or 0.38.<br> Can you tell me how to work it out?please!
Usimov [2.4K]
You do 3 x 8 / 100 to work out 3/8 as a decimal. So its 0.24. 0.38 is bigger
7 0
3 years ago
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