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Select all that justify the following statement.2•1/2=1
commutative - addition
inverse - addition
associative - multiplication
symmetric
commutative - multiplication
associative - addition
inverse - multiplication

Answers

Answer 1
Answer:

Answer:

G: Inverse multiplication

Step-by-step explanation:

Statement is 2•1/2=1

Now, what this means is that when we multiply a number by it's inverse form, the result will be 1.

This means that this statement denotes an inverse multiplication.

Thus, the last option is the correct answer

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2. How would you hold your bowl to eat in China?

Answers

Answer:

you hold the bowl with your thumb on the rim and then support it on the side with the rest of your fingers

Step-by-step explanation:

plz vote brainliest

203.530 divided by 0.7=

Answers

Dnnsbdbshdvsbsbsbzsgbshsbdbbz

A survey in Men’s Health magazine reported that 39% of cardiologists said that they took vitamin E supplements. To see if this is still true, a researcher randomly selected 100 cardiologists and found that 36 said that they took vitamin E supplements. At α = 0.05, test the claim that 39% of the cardiologists took vitamin E supplements. A recent study said that taking too much vitamin e might be harmful how might this study make the results of the previous study invalid?

Answers

Answer:

z=\frac{0.36 -0.39}{\sqrt{(0.39(1-0.39))/(100)}}=-0.615  

The p value for this case would be:

p_v =2*P(z<-0.615)=0.539  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

Step-by-step explanation:

Information given

n=100 represent the random sample taken

X=36 represent the number of people that take E supplement

\hat p=(36)/(100)=0.36 estimated proportion of people who take R supplement

p_o=0.39 is the value that we want to test

\alpha=0.05 represent the significance level

z would represent the statistic

p_v represent the p value

Hypothesis to test

We want to test if the true proportion is equatl to 0.39 or not, the system of hypothesis are.:  

Null hypothesis:p=0.39  

Alternative hypothesis:p \neq 0.39  

The statistic is given by:

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

Replacing the info we got:

z=\frac{0.36 -0.39}{\sqrt{(0.39(1-0.39))/(100)}}=-0.615  

The p value for this case would be:

p_v =2*P(z<-0.615)=0.539  

For this case since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true proportion is not different from 0.39

This graph shows the distance that a robot walks. What is the robot’s speed?

Answers

Answer:

D. 30 feet per minute

Step-by-step explanation:

If you follow the x-axis (time) you see 1 minute as you go up the y-axis (distance) you see that 1 and 30 connect, therefore you get 30 feet per minute.

Answer:

30 feet per minute

Step-by-step explanation:

its very slow therefore it takes a lot of time

A person on a moving sidewalk travels 6 feet in 3 seconds. The moving sidewalk has a length of 60 feet. How long will it take to move from one end of the sidewalk to the other?​​

Answers

Answer:

Speed = distance / time

= 6/3 =2 ft/sec

Time = distance / speed

= 60/2

= 30 seconds

Is 4/12 closer to 0 , 1 or 1/2

Answers

Answer: 4/12  is closer to 0

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

it takes only 2 more 12s to go to 1/2
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