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elixir [45]
3 years ago
5

A plane is a figure. The intersection of two planes that do not coincide (if it exists) is a

Mathematics
2 answers:
Mkey [24]3 years ago
5 0
A plane is a two dimensional figure. The intersection of two planes that do not coincide (if it exists) is a line

ser-zykov [4K]3 years ago
3 0

Solution:

A plane is a two Dimensional  figure.

The Intersection of two planes that do not coincide is always a line.

Consider two planes ,A and B, Following are the possibilities

1. They may be parallel to each other.→→→ No curve obtained

2. The planes A and B can Coincide with each other.→→→Intersection is a plane.

3. The planes A and B are intersecting.→→→→Intersection is a line.


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PLEASE HELP ME PLEASE PLEASE
mezya [45]
1)

Break up the irregular shape into two rectangles

12 * 4.5 = 54
2 * 5 = 10
54 + 10 = 64 cm^2

2)

Break up the irregular shape into a triangle and rectangle

24 * 8 = 192

To get the base of the triangle:
24 - 6 - 6 = 12
To get the height of the triangle:
16 - 8 = 8

1/2(12 * 8) = 48

192 + 48 = 240 yd^2

3)

Separate into triangle and semi circle

To get the base: 8 * 2 = 16

1/2(15 * 16) = 120

(pi (8)^2)/2 = 100.5

120 + 100.5 = 220.5 cm^2

4)

Separate half circle from rectangle

(pi (7.5)^2)/2 = 88.4

7 * 15 = 105

88.4 + 105 = 193.4 m^2

5)

Separate triangle from trapezoid

2.8 * 7 = 19.6

(7+9/2)(3.6) = 28.8

19.6 + 28.8 = 48.4 ft^2

6)

Separate semi circle from trapezoid

(pi(3)^2)/2 = 6.3

(6+10/2)(8) = 64

6.3 + 64 = 70.3 yd^2

8 0
2 years ago
Help how do you do this help fast please
GalinKa [24]

Answer:

x= 50°

Hope it helps!

Step-by-step explanation:

The sum of the exterior angles of a polygon is always 360°

So, x+40+x+20+2x+2x = 360

6x + 60= 360

6x = 360-60 = 300

6x= 300

x= 300/6

= 50

7 0
2 years ago
A rock climber averages 12 3/5 feet per minute. Write and solve an equation to find how many feet x the rock climber climbs in 3
Nikolay [14]
Set up a proportion. If 12 3/5 feet can be traveled in one minute, then make that a fraction. 12 3/5 over one equals X over 30. Cross multiply 12 3/5×30 equals 1 X and solve.
6 0
3 years ago
3x-y= 17<br> -x+y= -7<br><br> Help please
AlexFokin [52]

Answer:

y = -2

x = 5

Step-by-step explanation:

3x - y = 17

-x + y = -7

here we can find the sum of the two equations

2x = 10

x = 5

now we can just plug in the value of x to find y

-(5) + y = -7

y = -2

8 0
2 years ago
I need help with algebra. i will give you 50 points if you will help me.
forsale [732]
20=v+9-16               Equation

20=(v)+(9+-16)        Combine \ like \ terms

20=v+-7

20=v-7            

v-7=20 

v-7+7=20+7     \ Add \ 7 \ to \ both \ sides

v=27                 Solution
5 0
3 years ago
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