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Gwar [14]
3 years ago
12

Select the correct measurement of the angle shown on the protractor. a protractor showing an angle with one side lined up with t

he base line and the other side going through the fifth tick mark after fifty five degrees 110° 120° 50° 60°
Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0

Answer:

110 degrees hope this helps

Step-by-step explanation:

Mumz [18]3 years ago
6 0

Answer:

110°

Step-by-step explanation:

Each tick line in a protractor shows 10°. So the next is 110° inclined.

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I need help on all of those. Pleeeaaassseee help I really need it
goldenfox [79]
39.7 times 100, or:

3970 inches squared
7 0
2 years ago
in a video game, each player starts the game with k points and loses 2 points each time a task is not completed. If a player who
KIM [24]
The value of k is 400 points.

If the player fails to complete 100 tasks, then they lost 200 points. At the end of the game, they had 200 points.

We can write and solve the following equation to determine where they started.

x - 200 = 200
x = 400
8 0
3 years ago
Read 2 more answers
What is the square root of 200
wariber [46]
Hi,

\sqrt{200}  = 14.14

Hope this helps.
r3t40
3 0
2 years ago
in a program designed to help patients stop smoking 232 patients were given sustained care and 84.9% of them were no longer smok
grandymaker [24]

Answer:

z=\frac{0.849 -0.8}{\sqrt{\frac{0.8(1-0.8)}{232}}}=1.869  

p_v =2*P(Z>1.869)=0.0616  

If we compare the p value obtained and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of adults were no longer smoking after one month is not significantly different from 0.8 or 80% .  

Step-by-step explanation:

1) Data given and notation

n=232 represent the random sample taken

X represent the adults were no longer smoking after one month

\hat p=0.849 estimated proportion of adults were no longer smoking after one month

p_o=0.80 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportion is 0.8.:  

Null hypothesis:p=0.8  

Alternative hypothesis:p \neq 0.8  

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.

3) Calculate the statistic  

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

z=\frac{0.849 -0.8}{\sqrt{\frac{0.8(1-0.8)}{232}}}=1.869  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a bilateral test the p value would be:  

p_v =2*P(Z>1.869)=0.0616  

If we compare the p value obtained and the significance level given \alpha=0.05 we see that p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of adults were no longer smoking after one month is not significantly different from 0.8 or 80% .  

6 0
3 years ago
5x - 4y = -8<br> x + 4y = -16
kati45 [8]

Answer:

(-4 , -3)

Step-by-step explanation:

7 0
2 years ago
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