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trapecia [35]
3 years ago
10

Need help...,.......

Mathematics
1 answer:
never [62]3 years ago
7 0
         3x
= -------------
       3y<span>√2
</span>         
         x
= -------------
       y√2  

         x√2
= -------------
         2y
  
Answer is A. first choice
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Answer:

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Step-by-step explanation:

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3 years ago
The design for the palladium window shown includes a semicircular shape at the top. The bottom is formed by squares of equal siz
9966 [12]

Answer:

(a)\ Area = 3765.32

(b)\ Area = 4773

Step-by-step explanation:

Given

A_1 = 169in^2 --- area of each square

Shade = 4in

See attachment for window

Solving (a): Area of the window

First, we calculate the dimension of each square

Let the length be L;

So:

L^2 = A_1

L^2 = 169

L = \sqrt{169

L=13

The length of two squares make up the radius of the semicircle.

So:

r = 2 * L

r = 2*13

r = 26

The window is made up of a larger square and a semi-circle

Next, calculate the area of the larger square.

16 small squares made up the larger square.

So, the area is:

A_2 = 16 * 169

A_2 = 2704

The area of the semicircle is:

A_3 = \frac{\pi r^2}{2}

A_3 = \frac{3.14 * 26^2}{2}

A_3 = 1061.32

So, the area of the window is:

Area = A_2 + A_3

Area = 2704 + 1061.32

Area = 3765.32

Solving (b): Area of the shade

The shade extends 4 inches beyond the window.

This means that;

The bottom length is now; Initial length + 8

And the height is: Initial height + 4

In (a), the length of each square is calculated as: 13in

4 squares make up the length and the height.

So, the new dimension is:

Length = 4 * 13 + 8

Length = 60

Height = 4*13 + 4

Height = 56

The area is:

A_1 = 60 * 56 = 3360

The radius of the semicircle becomes initial radius + 4

r = 26 + 4 = 30

The area is:

A_2 = \frac{3.14 * 30^2}{2} = 1413

The area of the shade is:

Area = A_1 + A_2

Area = 3360 + 1413

Area = 4773

7 0
2 years ago
Please answer as soon as possible ty &lt;3<br> credits go to ixl :")
aleksley [76]

I cant see the picture good can you write it out not in picture because it is blury for me I dont know about the others

8 0
3 years ago
Read 2 more answers
In how many ways can a teacher arrange 5 students in the front row of a classroom with a total of 20 students?
aksik [14]
Slot method
5 slots

1st slot: 20
2nd slot: 19 (1 went to first slot)
3rd slot: 18
4th slot: 17
5th slot: 16

20*19*18*17*16=186,040 ways
5 0
3 years ago
Read 2 more answers
HELP PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
aleksandrvk [35]

50km to 80km is 30km

10c to -80c is -90c

and since it linear (Which means the change is constant or the same)

every 10 km show a -30c decrease

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60 km is -20c

70km is -50c


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5 0
3 years ago
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