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hammer [34]
2 years ago
13

Which lines are parallel?

Mathematics
1 answer:
kenny6666 [7]2 years ago
8 0
AC and DF are parallel
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Evaluate the expression when a=3 and c = -2. C-5a
Igoryamba

Answer:

-17

Step-by-step explanation:

c - 5a

substitute c for -2

-2 - 5a

substitute a for 3

-2 - 5*a

-2 - 5*3

-2 - 15

-17

8 0
2 years ago
Solve for b.<br><br> 2b + 9 = b<br><br> b =
neonofarm [45]

Answer:

-9

Step-by-step explanation:

9=b-2b

9=-b

divide both sides by -

b=-9

7 0
2 years ago
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The length of a rectangle is twice the width. An equation that models the perimeter of the rectangle is 2w+4w=36 where w is the
drek231 [11]

Answer: 12

Step-by-step explanation:

Let w = the width of the rectangle

Let 2w = the length

P = 2l + 2w

36 = 2(2w) + 2w

36 = 4w + 2w

36 = 6w

w = 6

l = 2(6)

l = 12

4 0
2 years ago
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Solve the system of two equations 2y=8 and 15y=2x-4
damaskus [11]
To find y, divide the first equation by 2.
  y = 4

To find x, use that value for y in the second equation. Add 4, then divide by 2.
  15·4 = 2x -4
  60 +4 = 2x
  64/2 = x = 32

The solution is (x, y) = (32, 4).

8 0
3 years ago
If x = 4, then 5x = 20
Alexandra [31]

Answer:

Step-by-step explanation:

3 0
3 years ago
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