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DiKsa [7]
4 years ago
11

Please help as soon as possible!!!!!!

Mathematics
2 answers:
shusha [124]4 years ago
6 0

Answer:

5. Congruent triangles

Step-by-step explanation:

Congruent Triangles : When two triangles are congruent, all its three sides are equal and have the same angles.

So in conguent traingles,

ΔADB ≅ BDC

Therefore, AB = DC and AD = BC

Thus this completes the missing information that proves that the quadrilateral ABCD ia a parallelogram, then its opposite sides are congruent.

mina [271]4 years ago
3 0

Answer:

  congruent triangles

Step-by-step explanation:

The complete reason is, "corresponding parts of congruent triangles are congruent." This reason is sometimes abbreviated CPCTC.

It can be helpful to note that the previous step concluded that the relevant triangles are congruent.

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Find the point at which the line x = 5 − t, y = 2 + t, z = 3t intersects the plane x − y + 4z = 13.
Nikolay [14]

The value of the points at which intersection of plane takes place is (x,y,z) = (4,3,3).

According to the statement

we have to find the point which they intersect the given plane.

So, For this purpose, we know that the

The given equations is :

x = 5 − t, -(1)

y = 2 + t,  -(2)

z = 3t -(3)

And the given plane is :

x − y + 4z = 13  -(4)

And, the intersection of plane point is :

Put the equations 1 and 2 and 3 in the 4th equations then

(5 − t) - (2 + t) + 4(3t) = 13

3 - 2t + 12t = 13

3 + 10t = 13

10t = 10

Then

t = 1

Put these values in 1 and 2 and 3rd equation then the value of x y z become

x = 5 − t, -(1)

x = 5 -1

x = 4

And

y = 2 + t,  -(2)

y = 2 + 1

y = 3

And

z = 3t -(3)

z = 3(1)

z = 3.

The value of (x,y,z) = (4,3,3).

So, The value of the points at which intersection of plane takes place is (x,y,z) = (4,3,3).

Learn more about intersection of plane here

brainly.com/question/12089275

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3 0
2 years ago
Solve for x and y.(Check description)
scZoUnD [109]
This is a 30, 60, 90 triangle. One angle measures 30° and the other measures 90°. The other has to be 60° because all triangles are 180°. These triangles have special rules:

Say the side opposite 30° (in this case, y) is equal to 1

The side opposite the 60° (in this case, x) is equal to √3

The side opposite 90° is 2.

If 16√3 is opposite 90°, then opposite 30° would be half of that. Therefore, y = 8√3.

Now we need to multiply y by √3 to get x, because the side opposite 60° is always that of 30° multiplied by √3.

8√3 * √3 = 24 as the √3s cancel and become 3. So 8 multiplied by 3 makes 24.

Therefore, x = 24.
4 0
4 years ago
Read 2 more answers
As an estimation we are told £3 is €4.<br> Convert €16 to pounds.
laila [671]

Answer:

12

Step-by-step explanation:

3=4

multiply both by 4

12=16

there is your answer

12

6 0
3 years ago
Solve the system by elimination<br> x + y = 2 , –3x + 4y = 15
Nitella [24]

Answer:

x=−y+2,   x= 4/3 Y -5

Step-by-step explanation:

(/=fraction btw and the Y goes in the middle of the line for the fraction!)

7 0
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Find x please help me I need the answer today before 11:59
OLEGan [10]

Answer:

70 degrees

180-40=140

140/2 = 70

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