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3 years ago

What is missing for the following quantity to be true? 11 + (1 + 2) = (__ + 1) + 2 11 1 2 3

Mathematics

2 answers:

otez555 [7]3 years ago

5 0

11, because if 11+(1+2)=14, then (11+1)+2 would too. Try it! Hope this helped?

Nataly [62]3 years ago

4 0

I think the answer you look for is 11. because of the common core math problems.

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Identify the independent and dependent variables for this study. The independent variable is the ratio of students to faculty us

Degger [83]

Answer:

-The independent variable is whether the motivational signs were posted, and the dependent variable is the amount of use of the stairs.

-Nominal scale.

Step-by-step explanation:

Independent variable: In research methods, the term "independent variable" is described as the variable that is being altered, manipulated, or changed by an investigator to see its effects on the dependent variable in specific research or experiment.

Dependent variable: In research methods, the term "dependent variable" is described as the variable that is being measured, analysed, or tested in an experiment by the experimenter or researcher. The dependent variable is being directly affected by the independent variable.

Nominal scale: In research methods, the term "nominal scale" is determined as one the different measurement scales in which a specific number is being served as labels or tags only and to classify and identify an object.

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3 years ago

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alukav5142 [94]

Factoring a polynomial

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3 years ago

0.5 gallons plus 0.5 gallons plus 2 gallons plus 1gallon basicly i need to know how to add gallons.

gulaghasi [49]

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4 0

3 years ago

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Please help me with this geometry problem. :)

Reika [66]

Answer:

See below

Step-by-step explanation:

3 are congruent, 4 are supplementary

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3 years ago

Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the are

Nastasia [14]

Answer:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

$z=\frac{0.36 -0.41}{\sqrt{\frac{0.41(1-0.41)}{100}}}=-1.017$

Step-by-step explanation:

Data given and notation

n=100 represent the random sample taken

$\hat p=0.36$ estimated proportion with the survey

$p_o=0.41$ is the value that we want to test

$\alpha$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportion is lower than 0.41.:

Null hypothesis: $p\geq 0.41$

Alternative hypothesis: $p < 0.41$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.36 -0.41}{\sqrt{\frac{0.41(1-0.41)}{100}}}=-1.017$

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3 years ago

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