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geniusboy [140]
3 years ago
12

ANSWER ASAP I WILL MAKE BRAINLYIST

Mathematics
2 answers:
Nostrana [21]3 years ago
6 0

Answer:

(1,-3)

or

x=1 y= -3

Step-by-step explanation:

Looking at this we can see that there's a 2y in both of the equations (one is negative while the other is positive and so we'll add them)

so we have

(2x+2y)+(6x-2y)= -4+12

this simplifies to

8x=8

x=1

We know that x=1 and so we will plug this back into one of the two equations

2(1)+2y= -4

2+2y= -4

2y= -6

y= -3

Therefore the solution is (1,-3)

RSB [31]3 years ago
5 0

Answer:

2x+2y=-4

since we don't know the value of the letters, we could ignore it. then we add 2+2 which equals 4

6x-2y=12

In this case this equation is incorrect.

Step-by-step explanation:

sorry if I'm incorrect

(please if I'm correct, I really need the brainliest)

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Answer:

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Step-by-step explanation:

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3 years ago
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(1 point) A recent report for a regional airline reported that the mean number of hours of flying time for its pilots is 56 hour
Ray Of Light [21]

Answer:

(53.812 ; 58.188) ; 156

Step-by-step explanation:

Given that :

Sample size (n) = 51

Mean (m) = 56

Standard deviation (σ) = 9.5

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Confidence interval = mean ± Error

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2.)

Margin of Error (ME) = 1.25

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Zcritical at 90% = 1.645

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Sample size = 156

3 0
2 years ago
14
mr_godi [17]
<span>radius=1/2 diameter
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Answer:

The first

Step-by-step explanation:

The intercept is a negative so the line will be going the opposite way

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