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sineoko [7]
2 years ago
6

Pleasee help meeeeeee

Mathematics
1 answer:
soldier1979 [14.2K]2 years ago
4 0

Step-by-step explanation:

we mulyiply 3*1 =x-7

3=x-7

-x= -7-3

-x= -11 so when we divide -11 by -x it becomes 11

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If a median, an altitude, and an angle bisector are the same segment in a triangle, the triangle is scalene
statuscvo [17]
Never is the right answer .
3 0
3 years ago
{4x-2y+5z=6 <br> {3x+3y+8z=4 <br> {x-5y-3z=5
lesya692 [45]

There are three possible outcomes that you may encounter when working with these system of equations:


  •    one solution
  •    no solution
  •    infinite solutions

We are going to try and find values of x, y, and z that will satisfy all three equations at the same time. The following are the equations:

  1. 4x-2y+5z = 6
  2. 3x+3y+8z = 4
  3. x-5y-3z = 5

We are going to use elimination(or addition) method

Step 1: Choose to eliminate any one of the variables from any pair of equations.

In this case it looks like if we multiply the third equation by 4 and  subtracting it from equation 1, it will be fairly simple to eliminate the x term from the first and third equation.

So multiplying Left Hand Side(L.H.S) and Right Hand Side(R.H.S) of 3rd equation with 4 gives us a new equation 4.:

4. 4x-20y-12z = 20      

Subtracting eq. 4 from Eq. 1:

(L.HS) : 4x-2y+5z-(4x-20y-12z) = 18y+17z

(R.H.S) : 20 - 6 = 14

5. 18y+17z=14

Step 2:  Eliminate the SAME variable chosen in step 2 from any other pair of equations, creating a system of two equations and 2 unknowns.

Similarly if we multiply 3rd equation with 3 and then subtract it from eq. 2 we get:

(L.HS) : 3x+3y+8z-(3x-15y-9z) = 18y+17z

(R.H.S) : 4 - 15 = -11

6. 18y+17z = -11

Step 3:  Solve the remaining system of equations 6 and 5 found in step 2 and 1.

Now if we try to solve equations 5 and 6 for the variables y and z. Subtracting eq 6 from eq. 5 we get:

(L.HS) : 18y+17z-(18y+17z) = 0

(R.HS) : 14-(-11) = 25

0 = 25

which is false, hence no solution exists



3 0
2 years ago
35 POINTS PLS HELP I HAVE UNTIL 12 TO FINISH
evablogger [386]

Answer: The first one is = 27.5

1/3 * 25 * 3.3 = 27.5

4 0
3 years ago
WILL GIVE BRAINLYEST
zalisa [80]

Answer:

C

Step-by-step explanation:

Let us factor out the 5:

5*x + 5*2y- 5*3

5(x+2y-3)

Therefore, C

<em>I hope this helps! :)</em>

5 0
3 years ago
Read 2 more answers
Please help me with my homework
Alona [7]

so for A it is 16 times as large because the area is 3*3 which is 9 but since it is a triangle the area is halved and is 4.5 and divide 72 by 4.5 which gives us 16

then for b I believe that the scale factor is 4

and for C it is asking for the bottom side of the scaled copy not of triangle A and 4*3=12 so the bottom is 12

ok now its complete =)

4 0
3 years ago
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