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ra1l [238]
3 years ago
14

Determine the volume of the square pyramid. 12 cm 10 cm 10 cm

Mathematics
1 answer:
Alona [7]3 years ago
6 0
15cm that’s the answer
You might be interested in
Pls help! I need help with a and c I did b already!
laila [671]

Answer:

A= y= -2x+7.

B= y= -\frac{3}{2}x+ 6

Step-by-step explanation:

The linear equation is y=mx+b

A= y= -2x+7.

-2 represents he slope and 7 represents the y intercept.

B= y= -\frac{3}{2}x+ 6

-\frac{3}{2} is the slop and 6 is the y intercept.

Hope this helps :)

8 0
3 years ago
What is the quotation of 7^-1/7^2
Temka [501]

Answer:

  • 7^-3

Step-by-step explanation:

<u>Solving in steps</u>

  • 7^-1/7^2 =
  • 7^-1 × 7^-2 =
  • 7^(-1 - 2) =
  • 7^-3
3 0
3 years ago
Draw the image of trapezium after reflection in the x axis​
quester [9]
Trapezium A is the trapezium you start with. And then you are expected to reflect it on the y axis (which is just the vertical line x=0)

5 0
3 years ago
how do i do <br><br> 6w cubed - w<br><br> i am so confused
irakobra [83]
216w^3
You can separate it to 6w*6w*6w so then 6*6*6=216 and w*w*w=w^3
8 0
2 years ago
I need to make a matrix in reduced row echelon form
a_sh-v [17]

Let the three apartments be A, B & C

The rent of A is $x

The rent of B is $y

The rent of C is $z

So x + y + z = 1600     .......(1)

Now

Maintenance of A is 20% of x = 0.20x

Maintenance of B is 20% of y = 0.20y

Maintenance of C is 25% of z = 0.25z

0.20x + 0.20y + 0.25z = 345

Multiplying by 100 we get

20x + 20y + 25 z = 34500

Dividing by 5 we get

4x + 4y + 5z = 6900              .......(2)

Monthly fee of A is 10% of x = 0.10x

Monthly fee of B is 20% of y = 0.20 y

Monthly Fee of C is 10% of z = 0.10z

Now

0.10x + 0.20y + 0.10 z= 1820 - 1600

0.10x + 0.20y + 0.10z = 220

Multiplying by 100 we get

10x + 20y + 10z = 22000

Dividing by 10

x + 2y + z = 2200     ....(3)

Making a Matrix of equation (1), (2) & (3)

\left[\begin{array}{ccc}1&1&1\\4&4&5\\1&2&1\end{array}\right] \left[\begin{array}{c}x\\y\\z\end{array}\right]  =\left[\begin{array}{c}1600\\6900\\2200\end{array}\right]

is the required matrix

7 0
4 years ago
Read 2 more answers
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