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PSYCHO15rus [73]
3 years ago
15

It is given thag 2(3+x) = 6+2x. this is an example of the ____ property.​

Mathematics
1 answer:
CaHeK987 [17]3 years ago
6 0

Answer:

Commutative Property

Step-by-step explanation:

In mathematics, a binary operation is commutative if changing the order of the operands does not change the result.

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perimeter=sum of all sides

p=2(L+W)

36=2(L+12)

36-24=2L

12=2L

L=6

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Enter the next 3 terms from the geometric sequence below.
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<em>-24, 48, -96</em>

<em>Step-by-step explanation:</em>

<em>The number before multiplies by -2.</em>

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<em>and so on. </em>

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x

Step-by-step explanation:

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7. License Plate Laws The Chapter Problem involved passenger cars in Connecticut and passenger cars in New York, but here we con
sergejj [24]

Yes it is true that commercial truck owners violate laws requiring front license plates at a higher rate than owners of passenger cars because null hypothesis is rejected.

Given among 2049 Connecticut passenger cars, 239 had only rear license plates. Among 334 Connecticut trucks, 45 had only rear license plates.

let p_{1} be the probability that commercial cars have rear license plates and p_{2} be the probability that connected trucks have rear license plates.

                         Cars                     Trucks                         Total

Total                  2049                    334                             2383

x                          239                      45                                284

p                        0.1166                   0.1347                          0.1191

α=0.05

Hypothesis will be  :

H_{0}:p_{1} =p_{2}

H_{1} :p_{1} < p_{2}

It is a left tailed test at 0.05 significance.

Standard errors of p=\sqrt{p(1-p)/n}

=\sqrt{(0.1191*0.8809)/2383}

=\sqrt{0.1049/2383}        

=0.0066

Test statistic Z=p difference/standard error

=(0.1166-0.1347)/0.0066

=-0.0181/0.0061

=-2.967

p value=0.001505<5%

Since p is less than 5% we reject null hypothesis.

We cannot calculate standard deviation so  we cannot calculate confidence interval.

Hence there is statistical evidence at 5% significance level to support that commercial truck owners violate laws requiring front license plates at a higher rate than owners of passenger cars.

Learn more about z test at brainly.com/question/14453510

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2 years ago
The slopes of the perpendicular lines are ____.
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Answer:

a) negative reciprocals

Step-by-step explanation:

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