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1 year ago

Use the substitution method to determine the solution to the system of equations below. y-2x+2=1 6x-3y=3

Mathematics

1 answer:

vesna_86 [32]1 year ago

4 0

Answer:

y-2x=-1

y=-1+2x

y=-(2x-1)

y=-2x+1---->

6x-3y=3 (or 2x-y=1)

2x-(-2x+1)=1

2x+2x-1=1

4x=2

x=1/2

-------------

subtitate 1/2

y-2(1/2)=-1

y-1=-1

y=0

hope it helps you

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We know that
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2 years ago

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Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

114, 261, 319, 183,654,313,58,98,335,324,52,125,342,66,321,893,690,798,201,74,632,216,76,155,161,304,530,1110,93,631,75,344,264,1120,122,45,304,192,316,63

USING CALCULATOR :

The mean(m) of the data: = ΣX/n

n = sample size = 40

m = 12974/40

m = 324.4

Median = ((n + 1)/2) th term = 41/2 = (20 + 21)th term / 2

= (261 + 264) / 2 = 262.5

Standard deviation (s) = sqrt(Σ(x - m)²/n))

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B.) Coefficient of skewness (Ks) :

3(mean - median) / standard deviation

3(324.4 - 262.5) / 281.74

= 0.66

Mild positive skewness Given a positive skew Coefficient value.

(d-1) Are there any outliers?

Yes

Four outliers

(d-2) What are the limits for outliers? (Round your answers to 1 decimal place. Negative amounts should be indicated by a minus sign.)

Lower bound = Q1 - (1.5 * IQR)

Upper bound = Q3 + (1.5 * IQR)

IQR = Q3 - Q1

Q3 = upper quartile = 343 ; Q1 = 106 ; Q2 = 262.5

IQR = 343 - 106 = 237

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2 years ago

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Answer:

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Step-by-step explanation:

in mathematics, either of two laws relating to number operations of addition and multiplication, stated symbolically: a + (b + c) = (a + b) + c, and a(bc) = (ab)c; that is, the terms or factors may be associated in any way desired.

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2 years ago

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Use the substitution method to determine the solution to the system of equations below. y-2x+2=1 6x-3y=3​

Use the substitution method to determine the solution to the system of equations below. y-2x+2=1 6x-3y=3