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steposvetlana [31]
3 years ago
13

Which of the following is an example of a system of three linear equations in theee variables

Mathematics
2 answers:
harkovskaia [24]3 years ago
6 0

Answer:

I think option D is correct

Gnom [1K]3 years ago
5 0

Answer:

1) no, because a solution must be an ordered triple pair (x,y,z)

2) { x+y+z=5    

   { 2x-3y+z=7      

   { x+2y-4z=2

3) infinity many solutions

4) use equations (1) and (2) to eliminate y

5) solve one equation for one of its variables  

Step-by-step explanation:

should be 100% on the quick check if you put those answers

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The image represents what geometric construction?
boyakko [2]
<span>C) 
Parallel lines construction  


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8 0
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Brandon buys a radio for $45.09 in a state where the sales tax is 7%. How much does he pay in taxes? If necessary round to the n
dusya [7]

Answer:

Step-by-step explanation:

tax = 7% of $45.09 = 0.07×$45.09 ≅ $3.16

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5 0
2 years ago
My product is 30. The differencd of the two factors is 1. The zum of the two factors is 11. What numbers am i
timurjin [86]
A * b = 30
a - b = 1
a + b = 11

take ur last 2 equations, and add them
a - b = 1
a + b = 11
--------------add
2a = 12
a = 12/2
a = 6

now its just a matter of subbing
a + b = 11
6 + b = 11
b = 11 - 6
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5 0
2 years ago
Find the missing coordinates y+7x=1<br><br> (-1, )<br> (4, )
Pachacha [2.7K]

Answer:

(-1,8)

(4,-27)

Step-by-step explanation:

y+7x=1

Let x = -1 and find y

y+7(-1)=1

y -7 =1

Add 7 to each side

y-7+7 = 1+7

y = 8

(-1,8)

Let x = 4 and find y

y+7(4)=1

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Subtract 28 from each side

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y = -27

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6 0
2 years ago
What does 9/10-13/18 equal as an improper fraction<br> 100 points
Liono4ka [1.6K]

Answer:

\huge \frac{8}{45}

Step-by-step explanation:

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4 0
3 years ago
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