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Kruka
12 days ago
8

In Siri's coin purse, she has 6 dimes and 4 quarters. Martha has 5 dimes and 3 quarters. Siri thinks that the ratio of dimes to

quarters in both purses is the same because they each have 2 more quarters than dimes. Is the same ratio of dimes to quarters maintained? Justify your response.
Mathematics
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Jake and Maddie each take the closest path from their homes to the store. Based on the picture below, what is the approximate di
Zina [12379]
To address this issue, the procedure below should be utilized:

 1- The Law of sines can be applied as follows:

 The unknown angle can be determined by: 180°-65°-45°=70°

 - The <span>distance Jake travels to the store is:

 30/Sin(70°)=x/Sin(45°)
 x=22.57

 - The distance Maddie travels to the store is:

 </span>30/Sin(70°)=y/Sin(65°)
<span> y=28.93

 - The difference calculated is: 6.36

Thus, the result shows that the difference is 6.36 m.</span>
5 0
2 months ago
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How much water and how much drink mix should Jerome use to make enough energy drink for all the runners? Create a table to show
Leona [12618]

Answer:

Step-by-step explanation:

Proceed to your table

6 0
2 months ago
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A study1 conducted in July 2015 examines smartphone ownership by US adults. A random sample of 2001 people were surveyed, and th
Inessa [12570]

Answer:

a) Null hypothesis:p_{1} = p_{2}    

Alternative hypothesis:p_{1} \neq p_{2}  

b) z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)  

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{688+671}{989+1012}=0.679  

c) z=\frac{0.696-0.663}{\sqrt{0.679(1-0.679)(\frac{1}{989}+\frac{1}{1012})}}=1.58    

d) In this scenario, we notice that \hat p_1 > \hat p_2 thus the conclusion for this case would indicate

Step-by-step explanation:

Information provided

X_{1}=688 denote the number of men possessing smartphones  

X_{2}=671 signify the number of women possessing smartphones

n_{1}=989 group of men sampled

n_{2}=1012 group of women sampled

p_{1}=\frac{688}{989}=0.696 symbolize the proportion of men with smartphones

p_{2}=\frac{671}{1012}=0.663 symbolize the proportion of women with smartphones

\hat p denote the pooled estimate of p

z would denote the test statistic

p_v signify the value

Part a

The objective is to evaluate if there is a disparity in smartphone ownership between men and women; the hypothesis statements would be:  

Null hypothesis:p_{1} = p_{2}    

Alternative hypothesis:p_{1} \neq p_{2}    

Part b

The statistic relevant to this case is expressed as:

z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)  

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{688+671}{989+1012}=0.679  

Part c

By substituting the provided information, we find:

z=\frac{0.696-0.663}{\sqrt{0.679(1-0.679)(\frac{1}{989}+\frac{1}{1012})}}=1.58    

Part d

In this instance, it is evident that \hat p_1 > \hat p_2 thus the conclusion for this case would seem

4 0
2 months ago
True or False: Like the edges of a filled-in area, the endpoints of a polygon do not need to conform to snap points.
PIT_PIT [12445]

Answer:

The response is "False."

Explanation:

In geometry, an area refers to the space that an object occupies. A filled area consists of lines that connect to create an "edge."

These connecting lines help define the shape or area of the object and are known as "snap points." Keep in mind that "polygons" are made up of line segments that connect at their endpoints to form a closed shape. Consequently, it must adhere to "snap points."

This clarifies the response.

8 0
3 months ago
g A modal class in a histogram is the class that includes a. the largest number of observations. b. the smallest observation in
Leona [12618]

Answer:

a. the class with the highest number of observations.

Step-by-step explanation:

The mode refers to the value within a dataset that appears most frequently. This indicates that it occurs with greater frequency than other values.

In a histogram, the modal class denotes the category that has the most observations, demonstrating that the variables in that category have a higher occurrence than those in others. Consequently, the answer sought is option a.

4 0
1 month ago
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