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Elenna [48]
3 years ago
7

6) Select the best method to solve the system.

Mathematics
1 answer:
Andrew [12]3 years ago
7 0

Answer:

Elimination

x=-5 and y=-8

Step-by-step explanation:

-(5x-4y=7) <--- Multiply by a negative so that y can cancel out

4x-4y=12

=-5x+4y=-7

  4x-4y=12

=-x=5

  x=-5

5(-5)-4y=7 <--- plug x back in to solve for y

-25-4y=7

+25     +25

-4y/-4=32/-4

y=-8

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-3c-4=2<br> ---------------
Lilit [14]

Answer:

Solution given:

-3c-4=2

add 4 on both side

-3c-4+4=2+4

-3c=6

divide both side by -3

-3c/-3=6/-3

c=-2

7 0
3 years ago
Read 2 more answers
Help pls pls pls pls
adelina 88 [10]

Answer:

m∠1= 41°

m∠2= 85°

m∠3= 95°

m∠4= 85°

m∠5= 36°

m∠6= 49°

m∠7= 106°

Step-by-step explanation:

<u>To find m∠2</u>

95+m∠2= 180

-95             - 95

m∠2= 85

<u>To find m∠4</u>

Since they are vertical angles, m∠2=m∠4, that means that they are both 85°

<u>To find m∠1</u>

There is four angles in this shape, so the sum is 360 degrees.

90+144+85+m∠1= 360

319+m∠1= 360

-319            -319

m∠1= 41°

<u>To find m∠5</u>

144+m∠5= 180

-144             -144

m∠5= 36°

<u>To find m∠6</u>

m∠5+m∠3+m∠6= 180

36+95+m∠6= 180

131+m∠6= 180

-131             -131

m∠= 49°

<u>To find m∠7</u>

You need to find the sum of the other unidentified angle.

m∠6+m∠=180

49+m∠= 180

-49            -49

m∠= 131

Now you need to find the sum of all the angles in the quadrilateral to get the measure for angle 7.

131+38+85+m∠7= 360

254+m∠7= 360

-254            -254

m∠= 106°

4 0
4 years ago
Please help me 19 points ! I inserted a image of the problem
bija089 [108]

Answer:

first tile: x=5, second tile x=19, third tile x=29, last tile x=6

Step-by-step explanation:

Ohhh is that edmentum i do that too! ;)

(x-1)^3=64

x-1=4

x=5

(x-3)^5=2^20

x-3=2^4

x-3=16

x=19

(x-4)^3=5^6

x-4=25

x=29

the last one has to be x=6

3 0
4 years ago
Wx=? <br> please i need help asap!
IceJOKER [234]

Answer:

24 because hsbs. hwhvw w Whelan has w hahaha

7 0
3 years ago
Help pls im stuck on this brainliest to first person to answer
Dima020 [189]

Answer:

B. X and Z are similar but not congruent will be the answer.

this is because they lie in the same quadrants but not congruent as their dimensions aren't same.

pls give brainliest for the answer

5 0
3 years ago
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