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Degger [83]
2 years ago
13

NEED HELP ASAP WILL GIVE BRAINLIEST

Mathematics
2 answers:
ollegr [7]2 years ago
6 0

Answer:

D. (272, 127)

Step-by-step explanation:

It's actually not A, I just took the test. The right answer is D.

Anuta_ua [19.1K]2 years ago
3 0

Answer:

<em>it's either A or B hope I helped a little</em>

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Just need help with number 1. Thanks!
Mrrafil [7]

For 1 you can use 2 or -4, either one works.

3 0
3 years ago
Read 2 more answers
1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Nezavi [6.7K]

I think this is what you are looking for:

=−12

a

b

=

−

12

+=4

a

+

b

=

4

(+)2=42

(

a

+

b

)

2

=

4

2

2+2+2=16

a

2

+

b

2

+

2

a

b

=

16

∴2+2=16+2×12=40

∴

a

2

+

b

2

=

16

+

2

×

12

=

40

Now, (−)2=2+2−2=40+2×12=64

(

a

−

b

)

2

=

a

2

+

b

2

−

2

a

b

=

40

+

2

×

12

=

64

∴(−)=64‾‾‾√=±8

∴

(

a

−

b

)

=

64

=

±

8

So, 2−2=(+)(−)

a

2

−

b

2

=

(

a

+

b

)

(

a

−

b

)

2−2=(4)(±8)=±32

a

2

−

b

2

=

(

4

)

(

±

8

)

=

±

32

Hope that helps and sorry if it is confusing!

4 0
2 years ago
Read 2 more answers
Can an absolute value equal a negative?
Montano1993 [528]
The distance of it away from zero cannot be a negative distance, distance is always positive therefor the absolute value will always be positive.

Short answer: no, absolute value is always positive

I hope this helps :)
7 0
3 years ago
A graph of a system of two equations is shown. HELP!!!!!
s344n2d4d5 [400]

Answer:

8 and 2

Step-by-step explanation:

8 and 2 because y=5x +3 would be 5+3 which is 8 and y= 3x - 1 would be 3 - 1 which equals 2.

4 0
2 years ago
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dangina [55]
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3 0
3 years ago
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