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abruzzese [7]
3 years ago
12

BC is parallel to DE What is AC?

Mathematics
2 answers:
Olenka [21]3 years ago
6 0

Answer:

the answer is indeed 12



DaniilM [7]3 years ago
3 0
ΔABC ~ ΔADE
AC/AE = AB/AD
AC/(AC+15) = 8/18
18AC = 8(AC+15)
18AC = 8AC + 120
18AC - 8AC = 120
10AC = 120
AC = 120/10
AC = 12
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Lines C and D are represented by the equations given below: Line C: y = x + 6 Line D: y = 3x + 2 Which of these shows the soluti
Andre45 [30]

Solution: (2,8)

Using the elimination method set up the system of equations like:

y = x + 6

y = 3x + 2

Eliminate the x-variable by multiplying the top equation by -3

-3y = -3x -18

y = 3x + 2

Combine terms:

-2y = -16

-y = -8

y = 8

Plug in 8 to one of the first equations for y

8 = 3x + 2

6 = 3x

x = 2

Solution: (2,8)

7 0
3 years ago
Pls pls help asap pls​
Stolb23 [73]

Answer:

Step-by-step explanation:

3y+7=2x

3y=2x-7

y=(2/3)x-7/3

when parallel, the y=ax+b, the a keeps the same

so it‘s y=(2/3)x-a

and it pass (2,6), so 6=(2/3)*2 -a

6=4/3-a

-a=(18-4)/3

-a=14/3

a=-14/3

6 0
3 years ago
Read 2 more answers
What is the value of the expression below? 8 + 24 / 2 X 6 - 4
umka21 [38]

8 + 24 / 2 X 6 - 4

following order of operations divide 24 by 2:

8 + 12 x 6 -4

Multiply 12 by 6:

8 + 72 -4

Add 8 and 72:

80-4

Subtract to get 76

6 0
3 years ago
Read 2 more answers
How many solutions does the equation 3x-2x+4=2+x+2 have?
Vikentia [17]
It has only one solution because it is a linear equation
5 0
3 years ago
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Please help me it says What kind of triangle makes the Pythagorean theorem true?what angle does it need to have?
Levart [38]
<h3>Answer:</h3>

right triangle

<h3>Step-by-step explanation:</h3>

The sides of a right triangle in a simple way, so that if the lengths of any two sides are known the length of the third side can be found.

hope it helps.

8 0
3 years ago
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