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yuradex [85]
3 years ago
9

A system of equations is shown below:

Mathematics
2 answers:
nikdorinn [45]3 years ago
7 0

Answer:

The x-coordinate of the solution to this system of equations is 2

Step-by-step explanation:

we have

3x-y=2 ------> equation A

x+y=6 ------> equation B

Adds equation A and equation B

3x-y=2\\x+y=6\\--------\\ 3x+x=2+6\\4x=8\\x=2

user100 [1]3 years ago
5 0
<span>3x − y = 2

y = 3x - 2

x + y = 6

x + 3x - 2 = 6

4x - 2 = 6

4x = 6 + 2

4x = 8

x = </span>\frac{8}{4}

x = 2

Hence, the x co-ordinate is 2.
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Step-by-step explanation:

Take 12 feet and convert to inches

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Answer:

Step-by-step explanation:

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2 years ago
what is the slope of the line that passes through the points (10,2) and (19,14) write your answear in simplist form​
irakobra [83]

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Soft drink consumption in New Zealand. A survey commissioned by the Southern Cross Healthcare Group reported that 16% of New Zea
lidiya [134]
<h2>Answer with explanation:</h2>

Given : The proportion of New Zealanders consume five or more servings of soft drinks per week :\hat{p}= 0.16

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b) Confidence interval for population proportion (p) :

\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

, where \hat{p} = Sample proportion.

n= Sample size.

z* = Critical value.

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Then , the required confidence interval will be :

0.16\pm (1.96)\sqrt{\dfrac{ 0.16(1- 0.16)}{2006}}

0.16\pm (1.96)\sqrt{ 0.000066999002991}

0.16\pm (1.96)(0.00818529186963)

0.16\pm 0.0160431720645

(0.16-0.0160431720645,\ 0.16+0.0160431720645)

(0.143956827935,\ 0.176043172064)\approx(0.144,\ 0.176)

i.e. A 95% confidence interval for the proportion of New Zealanders who report that they consume five or more servings of soft drinks per week. = (0.144,\ 0.176)

c) (0.144,\ 0.176)=(0.144\times100\%,\ 0.176\times100\%)

=(14.4\%,\ 17.6\%)176\times100\%)[/tex]

d) The estimate might be biased because the survey is taken online that means offline New Zealanders are out of consideration.

6 0
3 years ago
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irakobra [83]
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