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mart [117]
3 years ago
7

Need Help please fast

Mathematics
1 answer:
pochemuha3 years ago
3 0
I think B not sure tho 
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Type the correct answer in each box. If necessary, use / for the fraction bar(s).
spayn [35]

Answer:X=5/6 Y=8/5

Step-by-step explanation:

-6x +5y=3

+6x

5y=6x+3 (divide each number by 5)

Y=6/5x + 3/5 (Plug that into your x equation)

12x+15 (6/5x + 3/5) =34

(Multiply 15 by the numbers in the brackets you can break it down and do 15•6 divided by 5 )

15•6=90 divided by 5=18x

15•3= 45 divided by 5=9

(Add like variables)

12x+18x=30x

30x+9=34

(Subtract 9 from itself do the same to 34)

9-9= 0

34-9=25

Divide 30 by itself to get x by itself then divide 25 by 30

25 divided by 30= 5/6

X=5/6 (plug that into the y equation)

Y=6/5•5/6+3/5

Multiply 6/5 and 5/6 straight across because this is multiplication you don't need like denominators

6/5•5/6=30/30=1

Y=1+3/5

1/1 + 3/5

Here you need to have like denominators because it is addition so just use 5

5•1=5

5/5+3/5=8/5

Y=8/5

5 0
2 years ago
What is the domain of y = cos θ?
Tpy6a [65]

Domain are all the possible x values of a function. When you look at a cosine graph you can see that it goes on into infinity in the x or horizontal direction. This means that all x values are included in cosine. Because of this the domain is:

all real numbers

or

(-∞,∞)

^^^ It can be written both ways

Hope this helped! Let me know if there is anything else I can do!

7 0
2 years ago
Please help meeeee please I need help ???????
taurus [48]

Answer:

A.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Help ASAP giving brainliest
RUDIKE [14]

Answer:

X >= 1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help me after all of my questions are solved i will do a 100 points giveaway
Umnica [9.8K]

Answer:

A and B

Step-by-step explanation:

4(d-2)

4 times d is 4d

4 times -2 is -8

8 0
2 years ago
Read 2 more answers
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