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PtichkaEL [24]
3 years ago
7

What’s the solution ??

Mathematics
1 answer:
allochka39001 [22]3 years ago
8 0

Answer:

(5,-2)

Step-by-step explanation:

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Help...................
Alinara [238K]

Step-by-step explanation:

the surface area of that object consists of

2 triangles (one left, one right)

1 rectangle at the top

1 rectangle at the bottom

1 rectangle in the back

so, we need to calculate the area of each of these 5 areas and sum them up. that's it.

the area of such a triangle is

6×8/2 = 24 m²

we have 2 such triangles, so in total they are 48 m².

the rectangle at the top

10×12 = 120 m²

the rectangle at the bottom

12×8 = 96 m²

the rectangle in the back

12×6 = 72 m²

so the total surface area is

48 + 120 + 96 + 72 = 336 m²

7 0
3 years ago
5x<br> 3.<br> +<br> 4x2-9<br> 2x+1<br> 2x2+x-3
irakobra [83]

Answer:

~Re-write the equation~

SOLVE:

5x(3)+4x (2-9)+(2x+1)+(2x2+x-3)

5(1)(3)=15

4(2-9)=8+36=44

2x+1=3

2x2+x-3:4(1)-3=1

15+44+3+1

ANSWER=63x

Step-by-step explanation:

I wasn't quite sure because of the way you wrote it but here's an answer!

7 0
3 years ago
What is the coordinates of the vertex of y+10=4(x-1)^2​
trasher [3.6K]

Answer:

(1, -10)

Step-by-step explanation:

Only the y can be on the left hand side. The square has been completed so all you need do is transfer the 10 to the right and read the x,y values for the vertex.

I have provided a graph to show you that the vertex and my answer are the same (hopefully).

y + 10 = 4(x - 1)^2          Subtract 10 from both sides.

y + 10-10=4(x -1)^2 -10  Combine

y = 4(x - 1)^2 - 10

Now we need to make the square term = 0

x - 1  = 0                        Add 1 to both sides

x - 1 + 1 = 0 +1               Combine

x = 1                              When x = 1 the square term will equal 0.

The vertex should be (1, - 10)

8 0
3 years ago
Quick help pls 26 points ​
kotegsom [21]

Answer: hi, i can’t see the photo

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A small class has 10 students, 5 of whom are girls and 5 of whom are boys. The teacher is going to choose two of the students at
yKpoI14uk [10]
There are 10 students so that is 2/10 which reduces down to 1/5 
7 0
3 years ago
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