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3 years ago

12

Which triangle is a translation of triangle P? On a coordinate plane, triangle P is shifted 5 units to the right and 7 units up

to form triangle C. triangle A triangle B triangle C

1 answer:

Deffense [45]3 years ago

6 0

Answer:

Triangle C

Step-by-step explanation:

Got it right on edge test

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Evan drew 8 pictures. Alexa drew p fewer pictures than Evan. Write an expression that shows how many pictures Alexa drew.

zhenek [66]

Answer:

8 - p

Step-by-step explanation:

X is p fewer than Y … X = Y - P

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2 years ago

Mary mixes 11/12 oz of red paint with 1 3/4 oz of white paint. How many ounces of paint does Mary mix? A1 2/3 oz 1 5/6 oz 1 7/8

asambeis [7]

11/12 + 1 3/4=

1 3/4 = 7/4 = 21/12

11/12 + 21/12 = 32/12 = 2 8/12 = 2 2/3 oz

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4 years ago

Read 2 more answers

According to an article in Newsweek, the natural ratio of girls to boys is 100:105. In China, the birth ratio is 100:114 (46.7%

mojhsa [17]

Answer:

$z=\frac{0.42 -0.467}{\sqrt{\frac{0.467(1-0.467)}{150}}}=-1.154$

$p_v =2*P(z$

So the p value obtained was a very high value and using the significance level given $\alpha=0.05$ we have $p_v>\alpha$ 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 girls born is not significantly different from 0.467

Step-by-step explanation:

Data given and notation

n=150 represent the random sample taken

X=63 represent the number of girls born

$\hat p=\frac{63}{150}=0.42$ estimated proportion of girls born

$p_o=0.467$ 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)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportion if girls is 0.467.:

Null hypothesis: $p=0.467$

Alternative hypothesis: $p \neq 0.467$

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:

$z=\frac{0.42 -0.467}{\sqrt{\frac{0.467(1-0.467)}{150}}}=-1.154$

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:

$p_v =2*P(z$

So the p value obtained was a very high value and using the significance level given $\alpha=0.05$ we have $p_v>\alpha$ 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 girls born is not significantly different from 0.467

3 0

3 years ago

The drama club at Central sells hot chocolate and coffee at the high school football games. At the last game, they had sales of

xxTIMURxx [149]

Answer:

I could be wrong but the coffee is 200 and the hot choclet is 266.666666667

Step-by-step explanation:

I used math and a calculator.

3 0

3 years ago

Please help fast ASAP

ololo11 [35]

A is the answer because is quadrilateral is a four sided shape that can be congruent and a parallelogram is a four-sided plane rectilinear figure with opposite sides parallel.

6 0

3 years ago