PLS HELP WILL MARK BRAINLIEST

Mathematics

2 answers:

OleMash [197]3 years ago

7 0

Answer: No

Because each input value only has one output value.

Since these input values all have the same output, this function is not a relation.

Step-by-step explanation: Have a nice day! :)

vichka [17]3 years ago

5 0

No, the answer would be no because that’s the correct option

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Solve by elimination -4x-5y-z=18 -2x-5y-2z=12 -2x+5y+2z=4

Morgarella [4.7K]

So

-4x-5y-z=18
-2x-5y-2z=12
-2x+5y+2z=4

the 2 last equations look perfect for canceling each other so add them together

-2x-5y-2z=12
-2x+5y+2z=4 +
-4x+0y+0z=16
-4x=16
divide both sides by 4
-x=4
multiply -1
x=-4

now we have
-4x-5y-z=18
-2x+5y+2z=4
add them together
-6x+0y+z=22
but x=-4 so
-6(-4)+z=22
24+z=22
subtract 24 from both sides
z =-2

subsitute into any equation
-2x-5y-2z=12

x=-4
z=-2
-2(-4)-5y-2(-2)=12
8-5y+4=12
12-5y=12
subtract 12 from both sides
-5y=0
y=0

x=-4
y=0
z=-2

7 0

4 years ago

Read 2 more answers

Solve for x 35+.8x=43-7x

Vinvika [58]

Answer:

x = 1.02564

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS