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Nataly_w [17]
3 years ago
15

Can anyone tell me why?​

Mathematics
1 answer:
Rom4ik [11]3 years ago
5 0

Answer:

See the top left picture. the answer is there

Step-by-step explanation:

I will assume big cylinder is A. and small one is B.

Volume A = 424

Volume B = 188

the difference is 424 - 188 = 236.

If you see the top left picture, the side is divided by 2. Left side 188 and right side 188. Next step is, we can see that the shape is only difference at the top (for diameter), so we must slice it diagonally, means we need to divided it again by 2. So the remaining is 188/2 for both left and right.

Now add all the volume together (look at the shape)

Cylinder B + remaining left + remaining right = 188 + 94 + 94 = 306

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Evaluate UV if possible.
Mnenie [13.5K]

Answer: B

Step-by-step explanation:

Multiply U and V:

\begin{pmatrix}-9&1&0\\ \:4&0&2\\ \:0&1&5\end{pmatrix}\begin{pmatrix}2\\ \:-2\\ \:1\end{pmatrix}

\mathrm{Multiply \ the \ rows \ of \ the \ first \ matrix \ by \ the \ columns  \ of \ the \ second \ matrix:}

\begin{aligned}&\left(\begin{array}{ccc}-9 & 1 & 0\end{array}\right)\left(\begin{array}{c}2 \\-2 \\1\end{array}\right)=(-9) \cdot 2+1 \cdot(-2)+0 \cdot 1 \\&\left(\begin{array}{ccc}4 & 0 & 2\end{array}\right)\left(\begin{array}{c}2 \\-2 \\1\end{array}\right)=4 \cdot 2+0 \cdot(-2)+2 \cdot 1 \\&\left(\begin{array}{lll}0 & 1 & 5\end{array}\right)\left(\begin{array}{c}2 \\-2 \\1\end{array}\right)=0 \cdot 2+1 \cdot(-2)+5 \cdot 1\end{aligned}

=\begin{pmatrix}\left(-9\right)\cdot \:2+1\cdot \left(-2\right)+0\cdot \:1\\ 4\cdot \:2+0\cdot \left(-2\right)+2\cdot \:1\\ 0\cdot \:2+1\cdot \left(-2\right)+5\cdot \:1\end{pmatrix}

\mathrm{Simplify\:each\:part:}

=\begin{pmatrix}-20\\ 10\\ 3\end{pmatrix}

Therefore, the correct answer is B

5 0
2 years ago
What is x to the power of 2 minus x?
pickupchik [31]
If you are asking what x to the power of 2 minus x is as a mathematical expression, then your answer is:

= x^2 - x

If you are asking what another equivalent expression for x^2 - x is or if you want it in factorised form, then your answer is:

= x ( x - 1 )

Hope this was helpful! <3
6 0
3 years ago
Find the circumcenter of triangle EFG with E(2,6) , F(2,4) , and G(6,4).
insens350 [35]
The answer is (4,5) Mark me brainliest!!!!!
6 0
3 years ago
Can someone please provide an answer with an explanation please?
Elden [556K]

Answer:

7 is the card that must be removed.

Step-by-step explanation:

2 + 5 + 8 + 9 = 24 and dividing it by four (which is something you have to do when finding the average or mean) will get you 6 as an answer. So by getting rid of 7 you have a final mean as 6.

5 0
3 years ago
Please someone solve this problem <br>I really need answers ​
yulyashka [42]

Answer:

x = 50°

y = 50°

z = 80°

Step-by-step explanation:

working out x:

angles on a straight line add up to 180°

x + 130° = 180°

subtract 130 on both sides

x = 180° - 130°

x = 50°

working out y:

two vertical lines means that both sides are equal, so both angles are also equal (it's an isosceles triangle). This means that y is the same angle as x = 50°

y = 50°

working out z:

the sum of a triangle add up to 180°

add up the angles of x and y and equate to 180°

50 + 50 + z = 180

100 + z = 180

subtract 100 on both sides

z = 180 - 100

z = 80°

8 0
2 years ago
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