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tiny-mole [99]
2 years ago
6

ive been reposting this question forever i really need help if u answer correctly i will mark brainliest look at the image i upl

oaded that is the question and it shows what answers i need

Mathematics
1 answer:
miv72 [106K]2 years ago
4 0

Answer:

I believe it would be 64:80 you can report me if I'm wrong just trying to help

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Given your sister's incomplete text,
egoroff_w [7]

Explanation:

Quadrants 2 and 3 houses points that have negative x-values, while as Quadrants 1 and 4 houses points that have positive x-values.

If 'your sister' completes the text with negative y-value, the point would be in Q3.

If 'your sister' completes the text with positive y-value, the point would be in Q2.

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3 years ago
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Which situation is most likely to have a constant rate of change
Alekssandra [29.7K]
The answer is:

B. The cost for a group of friends to see a movie compared to the number of friends.

We can tell that this is most likely to have a constant rate of change because of what we already know about movie prices.

Movie prices are fixed, therefore, no matter how many friends you bring, the total price will always go up by the same amount.

For example:

Let's say a movie ticket costs $5 and you brought 3 friends with you. Since there are 4 people in total, you'd have to pay $20 for the tickets (5x4=20). Just as you're about to pay, Sally shows up. Now you have to pay for 5 people in total. How much do you need to pay now?

You will now need to pay $25 (5x5=25) for all of the tickets. Even though you now have 5 people in the group, you still only have to pay $5 for each ticket.

This is an example of a constant rate of change.
8 0
3 years ago
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Please help!!!!me!!!!!!
stich3 [128]

Answer:

y= 163 because of vertical angle

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How many solutions does the equation −4y 4y 2 = 2 have? two zero one infinitely many
yaroslaw [1]

The given equation -4y + 4y + 2 = 2 have infinite solutions.

According to the given question.

We have a equation.

-4y + 4y + 2 = 2

Solve the above equation for finding the number of solutions.

-4y + 4y + 2 - 2 = 2- 2

⇒  0 = 0

The coefficients and the constants match after combining the like terms. This gives us a true statement.

We can see that in the final equation, both sides are equal. Therefore, it has an infinite solution.

Hence, the given equation -4y + 4y + 2 = 2 have infinite solutions.

Find out more information about solutions of an equation:

brainly.com/question/14603452

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4 0
1 year ago
A random sample of 100 people was taken. Eighty-five of the people in the sample favored Candidate A. We are interested in deter
lbvjy [14]

Answer:

z=\frac{0.85 -0.8}{\sqrt{\frac{0.8(1-0.8)}{100}}}=1.25  

p_v =P(z>1.25)=0.106  

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 people who favored candidate A  is not significalty higher than 0.8

ii) not significantly greater than 80%

Step-by-step explanation:

Data given and notation

n=100 represent the random sample taken

\hat p=0.85 estimated proportion of people who favored candidate A

p_o=0.8 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 is higher than 0.8.:  

Null hypothesis:p\leq 0.8  

Alternative hypothesis:p > 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.

Calculate the statistic  

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

z=\frac{0.85 -0.8}{\sqrt{\frac{0.8(1-0.8)}{100}}}=1.25  

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 right tailed test the p value would be:  

p_v =P(z>1.25)=0.106  

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 people who favored candidate A  is not significalty higher than 0.8

ii) not significantly greater than 80%

8 0
2 years ago
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