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pochemuha
3 years ago
7

Is this a function? A) yes B) No

Mathematics
1 answer:
Lelu [443]3 years ago
6 0
Don’t listen to get the links they are annoying
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Is 4(x-3) equivalent to 12x-4-8(8x+1)
zvonat [6]

4x - 12 = 12x - 4 - 64x -8 simplify

4x - 12 = -52x -12 add 12 to both sides

4x= -52x divide by 4

x = -13x

It can be equivalent, but only if x=0


8 0
3 years ago
Solve the system of equations.
Orlov [11]

Answer:

x=-1, y = 2, z = 1

Step-by-step explanation:

We are given with three equations and we are asked to find the solution to them.

2x + 2y + 3z = 5  ------------- (A)

6x + 3y + 6z = 6  --------------(B)

3x + 4y + 4z = 9 ---------------(C)

Step 1 .

multiplying equation (A) by 3 and subtracting B from the result

6x + 6y + 9z = 15

6x + 3y + 6z = 6

-     -       -       = -

_______________

3y+3z=9

y+z=3

y=3-z  ----------------- (C)

Step 2.

Substituting this value of y in equation B and C

6x + 3(3-z) + 6z = 6  

6x+9-3z+6z=6

6x+3z=-3

2x+z=-1 ----------------(D)

3x + 4(3-z) + 4z = 9

3x+12-4z+4z=9

3x=-3  

x=-1 ------------ (E)

Putting this value f x in (D)

2(-1)+z=-1

-2+z=-1

z=1

Now we put this value of z in equation (C)

y=3-z

y=3-1

y=2

Hence we have

x=-1, y=2 and z=1

6 0
3 years ago
Jessica is on a the swim team. Each day she swims 8000m. Use the the fact to find how much this is in kilometers
Musya8 [376]

Answer:

8 Kilometers

Step-by-step explanation:

1m=0.001km

   So...

8000m=8km

7 0
3 years ago
Read 2 more answers
Ms. Garza is an architect who is helping with the set design for a school play. She was asked to cover the figure on the left wi
Sever21 [200]

Answer:

120

Step-by-step explanation:

i just answer the question

3 0
3 years ago
Read 2 more answers
Mrs. Lee works 4y hours each day from Monday to Friday. She works (4y-4) hours on Saturday.
7nadin3 [17]

Answer:

24y-4

Step-by-step explanation:

4y*5=20y

20y+4y-4= 24y-4

5 0
3 years ago
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